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                        Watch
                                - 
                                    Patent number 6,577,558
                                
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                                    Issue date Jun 10, 2003
                                
 
                                - 
                                         Giuseppe  Ricci Giuseppe  Ricci
 
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                                         G04 - HOROLOGY G04 - HOROLOGY
 
 
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                        Astronomic watch
                                - 
                                    Patent number 6,272,076
                                
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                                    Issue date Aug 7, 2001
                                
 
                                - 
                                         Asulab S.A. Asulab S.A.
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                                         Rudolf  Dinger Rudolf  Dinger
 
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                                         G04 - HOROLOGY G04 - HOROLOGY
 
 
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                        Ultradian timer
                                - 
                                    Patent number 6,259,655
                                
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                                    Issue date Jul 10, 2001
                                
 
                                - 
                                         William W. Witort William W. Witort
 
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                                         G04 - HOROLOGY G04 - HOROLOGY
 
 
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                        Biological timepiece
                                - 
                                    Patent number 5,140,562
                                
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                                    Issue date Aug 18, 1992
                                
 
                                - 
                                         Martin C. Moore-Ede Martin C. Moore-Ede
 
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                                         G04 - HOROLOGY G04 - HOROLOGY
 
 
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                        Biorhythm display device
                                - 
                                    Patent number 4,240,153
                                
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                                    Issue date Dec 16, 1980
                                
 
                                - 
                                         Raymond L. Merritt Raymond L. Merritt
 
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                                         G06 - COMPUTING CALCULATING COUNTING G06 - COMPUTING CALCULATING COUNTING
 
 
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                        3852949
                                - 
                                    Patent number 3,852,949
                                
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                                    Issue date Dec 10, 1974
                                
 
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                                         G04 - HOROLOGY G04 - HOROLOGY
 
 
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                        3815780
                                - 
                                    Patent number 3,815,780
                                
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                                    Issue date Jun 11, 1974
                                
 
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                                         A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
 
 
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                        3651984
                                - 
                                    Patent number 3,651,984
                                
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                                    Issue date Mar 28, 1972
                                
 
                                - 
                                         A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
 
 
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                        3533226
                                - 
                                    Patent number 3,533,226
                                
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                                    Issue date Oct 13, 1970
                                
 
                                - 
                                         A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
 
 
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                        3472018
                                - 
                                    Patent number 3,472,018
                                
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                                    Issue date Oct 14, 1969
                                
 
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                                         G04 - HOROLOGY G04 - HOROLOGY
 
 
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                        3452535
                                - 
                                    Patent number 3,452,535
                                
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                                    Issue date Jul 1, 1969
                                
 
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                                         G04 - HOROLOGY G04 - HOROLOGY
 
 
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                        3395829
                                - 
                                    Patent number 3,395,829
                                
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                                    Issue date Aug 6, 1968
                                
 
                                - 
                                         A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
 
 
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                        3327470
                                - 
                                    Patent number 3,327,470
                                
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                                    Issue date Jun 27, 1967
                                
 
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                                         G04 - HOROLOGY G04 - HOROLOGY
 
 
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                        3255581
                                - 
                                    Patent number 3,255,581
                                
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                                    Issue date Jun 14, 1966
                                
 
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                                         G04 - HOROLOGY G04 - HOROLOGY
 
 
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                        3152437
                                - 
                                    Patent number 3,152,437
                                
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                                    Issue date Oct 13, 1964
                                
 
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                                         G04 - HOROLOGY G04 - HOROLOGY
 
 
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                        3031654
                                - 
                                    Patent number 3,031,654
                                
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                                    Issue date Apr 24, 1962
                                
 
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                                         G04 - HOROLOGY G04 - HOROLOGY
 
 
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                        3011303
                                - 
                                    Patent number 3,011,303
                                
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                                    Issue date Dec 5, 1961
                                
 
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                                         G04 - HOROLOGY G04 - HOROLOGY
 
 
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                        2979884
                                - 
                                    Patent number 2,979,884
                                
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                                    Issue date Apr 18, 1961
                                
 
                                - 
                                         G04 - HOROLOGY G04 - HOROLOGY