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3839900
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Patent number 3,839,900
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Issue date Oct 8, 1974
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G01 - MEASURING TESTING
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3802251
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Patent number 3,802,251
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G04 - HOROLOGY
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3793877
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Patent number 3,793,877
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G01 - MEASURING TESTING
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3792607
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Patent number 3,792,607
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Issue date Feb 19, 1974
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G01 - MEASURING TESTING
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3791197
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Patent number 3,791,197
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G01 - MEASURING TESTING
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3559462
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Patent number 3,559,462
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G01 - MEASURING TESTING
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3517547
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G04 - HOROLOGY
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Patent number 3,355,932
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G04 - HOROLOGY
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G01 - MEASURING TESTING
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G01 - MEASURING TESTING
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G01 - MEASURING TESTING
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G01 - MEASURING TESTING