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3277471
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Patent number 3,277,471
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Issue date Oct 4, 1966
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G01 - MEASURING TESTING
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3087154
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Patent number 3,087,154
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Issue date Apr 23, 1963
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G01 - MEASURING TESTING
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2963700
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Patent number 2,963,700
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Issue date Dec 6, 1960
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G01 - MEASURING TESTING
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2959777
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Patent number 2,959,777
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Issue date Nov 8, 1960
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G01 - MEASURING TESTING
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2946996
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Patent number 2,946,996
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Issue date Jul 26, 1960
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G01 - MEASURING TESTING
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2919066
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Patent number 2,919,066
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Issue date Dec 29, 1959
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G01 - MEASURING TESTING
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2859438
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Patent number 2,859,438
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Issue date Nov 4, 1958
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G01 - MEASURING TESTING
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2700762
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Patent number 2,700,762
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Issue date Jan 25, 1955
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G01 - MEASURING TESTING
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2597348
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Patent number 2,597,348
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Issue date May 20, 1952
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G01 - MEASURING TESTING
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2585950
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Patent number 2,585,950
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Issue date Feb 12, 1952
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G01 - MEASURING TESTING