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2874605
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Patent number 2,874,605
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Issue date Feb 24, 1959
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G01 - MEASURING TESTING
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2533896
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Patent number 2,533,896
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G01 - MEASURING TESTING
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2482749
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Patent number 2,482,749
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G01 - MEASURING TESTING
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2468200
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Patent number 2,468,200
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Issue date Apr 26, 1949
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G01 - MEASURING TESTING
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2467899
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Patent number 2,467,899
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G01 - MEASURING TESTING
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2462925
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Patent number 2,462,925
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G01 - MEASURING TESTING
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2456392
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Patent number 2,456,392
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G01 - MEASURING TESTING
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2443382
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Patent number 2,443,382
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Issue date Jun 15, 1948
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G01 - MEASURING TESTING
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2412831
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Patent number 2,412,831
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Issue date Dec 17, 1946
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G01 - MEASURING TESTING
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2411870
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Patent number 2,411,870
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Issue date Dec 3, 1946
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G01 - MEASURING TESTING
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2410667
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Patent number 2,410,667
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Issue date Nov 5, 1946
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G01 - MEASURING TESTING
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2403919
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Patent number 2,403,919
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Issue date Jul 16, 1946
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G01 - MEASURING TESTING
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2401609
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Patent number 2,401,609
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Issue date Jun 4, 1946
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G01 - MEASURING TESTING
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2395921
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Patent number 2,395,921
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Issue date Mar 5, 1946
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G02 - OPTICS
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2395559
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Patent number 2,395,559
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Issue date Feb 26, 1946
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G01 - MEASURING TESTING
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2389143
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Patent number 2,389,143
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Issue date Nov 20, 1945
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G01 - MEASURING TESTING
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2386621
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Patent number 2,386,621
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G01 - MEASURING TESTING
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2385978
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Patent number 2,385,978
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G01 - MEASURING TESTING
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2384507
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Patent number 2,384,507
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G01 - MEASURING TESTING
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2372091
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Patent number 2,372,091
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G01 - MEASURING TESTING
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2366016
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Patent number 2,366,016
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Issue date Dec 26, 1944
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G01 - MEASURING TESTING
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2350240
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Patent number 2,350,240
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Issue date May 30, 1944
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G01 - MEASURING TESTING