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3912371
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Patent number 3,912,371
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Issue date Oct 14, 1975
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G02 - OPTICS
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3892454
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Patent number 3,892,454
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Issue date Jul 1, 1975
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H01 - BASIC ELECTRIC ELEMENTS
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3882471
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Patent number 3,882,471
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Issue date May 6, 1975
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G11 - INFORMATION STORAGE
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3878426
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Patent number 3,878,426
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Issue date Apr 15, 1975
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H01 - BASIC ELECTRIC ELEMENTS
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3873873
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Patent number 3,873,873
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Issue date Mar 25, 1975
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H01 - BASIC ELECTRIC ELEMENTS
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3829727
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Patent number 3,829,727
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Issue date Aug 13, 1974
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H01 - BASIC ELECTRIC ELEMENTS
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3798477
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Patent number 3,798,477
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Issue date Mar 19, 1974
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H01 - BASIC ELECTRIC ELEMENTS
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3796902
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Patent number 3,796,902
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Issue date Mar 12, 1974
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H01 - BASIC ELECTRIC ELEMENTS
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3754158
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Patent number 3,754,158
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Issue date Aug 21, 1973
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H01 - BASIC ELECTRIC ELEMENTS
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3737715
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Patent number 3,737,715
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Issue date Jun 5, 1973
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H01 - BASIC ELECTRIC ELEMENTS
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3689789
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Patent number 3,689,789
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Issue date Sep 5, 1972
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H01 - BASIC ELECTRIC ELEMENTS
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3687665
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Patent number 3,687,665
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Issue date Aug 29, 1972
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H01 - BASIC ELECTRIC ELEMENTS
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3675134
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Patent number 3,675,134
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Issue date Jul 4, 1972
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G11 - INFORMATION STORAGE
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3673457
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Patent number 3,673,457
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Issue date Jun 27, 1972
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H01 - BASIC ELECTRIC ELEMENTS
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3651362
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Patent number 3,651,362
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Issue date Mar 21, 1972
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H01 - BASIC ELECTRIC ELEMENTS