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Optical display apparatus
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Patent number 4,573,759
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Issue date Mar 4, 1986
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Pilkington P.E. Limited
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David W. Swift
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G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
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Color image data recorder
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Patent number 4,003,058
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Issue date Jan 11, 1977
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TRW Inc.
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Geoffrey S. Entwistle
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G01 - MEASURING TESTING
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3573813
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Patent number 3,573,813
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Issue date Apr 6, 1971
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G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS
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3564138
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Patent number 3,564,138
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Issue date Feb 16, 1971
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G01 - MEASURING TESTING
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3503255
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Patent number 3,503,255
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Issue date Mar 31, 1970
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G01 - MEASURING TESTING
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3445765
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Patent number 3,445,765
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Issue date May 20, 1969
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G01 - MEASURING TESTING
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3109063
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Patent number 3,109,063
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Issue date Oct 29, 1963
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G01 - MEASURING TESTING
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3030443
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Patent number 3,030,443
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Issue date Apr 17, 1962
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G01 - MEASURING TESTING
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2936449
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Patent number 2,936,449
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Issue date May 10, 1960
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G01 - MEASURING TESTING
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2843844
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Patent number 2,843,844
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Issue date Jul 15, 1958
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G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
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2793361
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Patent number 2,793,361
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Issue date May 21, 1957
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G02 - OPTICS
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2673492
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Patent number 2,673,492
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Issue date Mar 30, 1954
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B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
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2655836
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Patent number 2,655,836
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Issue date Oct 20, 1953
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G01 - MEASURING TESTING
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2446674
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Patent number 2,446,674
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Issue date Aug 10, 1948
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G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS
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2401327
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Patent number 2,401,327
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Issue date Jun 4, 1946
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G01 - MEASURING TESTING
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2316550
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Patent number 2,316,550
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Issue date Apr 13, 1943
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G01 - MEASURING TESTING
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2251984
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Patent number 2,251,984
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Issue date Aug 12, 1941
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G01 - MEASURING TESTING