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3921386
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Patent number 3,921,386
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Issue date Nov 25, 1975
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G04 - HOROLOGY
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3895487
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Patent number 3,895,487
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Issue date Jul 22, 1975
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G04 - HOROLOGY
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3892066
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Patent number 3,892,066
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Issue date Jul 1, 1975
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G04 - HOROLOGY
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3884034
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Patent number 3,884,034
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Issue date May 20, 1975
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G04 - HOROLOGY
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3877215
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Patent number 3,877,215
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Issue date Apr 15, 1975
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G04 - HOROLOGY
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3859781
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Patent number 3,859,781
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Issue date Jan 14, 1975
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G04 - HOROLOGY
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3818376
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Patent number 3,818,376
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Issue date Jun 18, 1974
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G04 - HOROLOGY
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3807164
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Patent number 3,807,164
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Issue date Apr 30, 1974
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G04 - HOROLOGY
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3806781
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Patent number 3,806,781
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Issue date Apr 23, 1974
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G04 - HOROLOGY
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3805179
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Patent number 3,805,179
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Issue date Apr 16, 1974
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G04 - HOROLOGY
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3798521
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Patent number 3,798,521
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Issue date Mar 19, 1974
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G04 - HOROLOGY
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3787715
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Patent number 3,787,715
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Issue date Jan 22, 1974
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H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
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3766454
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Patent number 3,766,454
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Issue date Oct 16, 1973
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G04 - HOROLOGY
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3756014
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Patent number 3,756,014
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Issue date Sep 4, 1973
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G04 - HOROLOGY
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3756010
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Patent number 3,756,010
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Issue date Sep 4, 1973
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G04 - HOROLOGY
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3699762
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Patent number 3,699,762
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Issue date Oct 24, 1972
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G04 - HOROLOGY
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3631669
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Patent number 3,631,669
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Issue date Jan 4, 1972
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G04 - HOROLOGY
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3618311
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Patent number 3,618,311
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Issue date Nov 9, 1971
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G04 - HOROLOGY
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3597634
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Patent number 3,597,634
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Issue date Aug 3, 1971
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H03 - BASIC ELECTRONIC CIRCUITRY