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3906494
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Patent number 3,906,494
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Issue date Sep 16, 1975
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G01 - MEASURING TESTING
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3794993
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Patent number 3,794,993
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G01 - MEASURING TESTING
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3660842
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Patent number 3,660,842
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G06 - COMPUTING CALCULATING COUNTING
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Patent number 3,384,828
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Issue date May 21, 1968
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G01 - MEASURING TESTING
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3377589
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Patent number 3,377,589
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G01 - MEASURING TESTING
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3311882
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Patent number 3,311,882
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G05 - CONTROLLING REGULATING
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3292034
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Patent number 3,292,034
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Issue date Dec 13, 1966
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G01 - MEASURING TESTING
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3205418
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Patent number 3,205,418
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G01 - MEASURING TESTING
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Patent number 2,982,954
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G01 - MEASURING TESTING
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Patent number 2,884,523
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G01 - MEASURING TESTING
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2874378
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Patent number 2,874,378
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G01 - MEASURING TESTING
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Patent number 2,847,667
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G01 - MEASURING TESTING
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2795780
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Patent number 2,795,780
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G01 - MEASURING TESTING
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2736007
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Patent number 2,736,007
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G01 - MEASURING TESTING
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2733392
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Patent number 2,733,392
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G01 - MEASURING TESTING
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2684410
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G01 - MEASURING TESTING
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2506766
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G01 - MEASURING TESTING