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3638066
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Patent number 3,638,066
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Issue date Jan 25, 1972
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A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
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3614521
-
Patent number 3,614,521
-
Issue date Oct 19, 1971
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G01 - MEASURING TESTING
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3448208
-
Patent number 3,448,208
-
Issue date Jun 3, 1969
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G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS
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3138796
-
Patent number 3,138,796
-
Issue date Jun 23, 1964
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G01 - MEASURING TESTING
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3115605
-
Patent number 3,115,605
-
Issue date Dec 24, 1963
-
G10 - MUSICAL INSTRUMENTS ACOUSTICS
-
2877457
-
Patent number 2,877,457
-
Issue date Mar 10, 1959
-
G01 - MEASURING TESTING
-
2749480
-
Patent number 2,749,480
-
Issue date Jun 5, 1956
-
G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS
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2676283
-
Patent number 2,676,283
-
Issue date Apr 20, 1954
-
G01 - MEASURING TESTING
-
2455456
-
Patent number 2,455,456
-
Issue date Dec 7, 1948
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G01 - MEASURING TESTING