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3087673
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Patent number 3,087,673
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Issue date Apr 30, 1963
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G06 - COMPUTING CALCULATING COUNTING
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3076594
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Patent number 3,076,594
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G06 - COMPUTING CALCULATING COUNTING
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3070294
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Patent number 3,070,294
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G06 - COMPUTING CALCULATING COUNTING
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3031139
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Patent number 3,031,139
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G06 - COMPUTING CALCULATING COUNTING
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2951636
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Patent number 2,951,636
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G06 - COMPUTING CALCULATING COUNTING
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2775403
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Patent number 2,775,403
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G06 - COMPUTING CALCULATING COUNTING
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2675961
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G06 - COMPUTING CALCULATING COUNTING
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2581870
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Patent number 2,581,870
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G06 - COMPUTING CALCULATING COUNTING
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2525423
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Patent number 2,525,423
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G06 - COMPUTING CALCULATING COUNTING
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2416369
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Patent number 2,416,369
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G06 - COMPUTING CALCULATING COUNTING
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2266366
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Patent number 2,266,366
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G06 - COMPUTING CALCULATING COUNTING
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2237150
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Patent number 2,237,150
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G06 - COMPUTING CALCULATING COUNTING
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2236794
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Patent number 2,236,794
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Issue date Apr 1, 1941
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G06 - COMPUTING CALCULATING COUNTING
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2229983
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Patent number 2,229,983
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G06 - COMPUTING CALCULATING COUNTING
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2214010
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Patent number 2,214,010
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G06 - COMPUTING CALCULATING COUNTING
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2209434
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Patent number 2,209,434
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G06 - COMPUTING CALCULATING COUNTING
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2182006
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Patent number 2,182,006
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Issue date Dec 5, 1939
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G06 - COMPUTING CALCULATING COUNTING
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2176931
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Patent number 2,176,931
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Issue date Oct 24, 1939
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G06 - COMPUTING CALCULATING COUNTING
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2176932
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Patent number 2,176,932
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Issue date Oct 24, 1939
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G06 - COMPUTING CALCULATING COUNTING
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2176934
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Patent number 2,176,934
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Issue date Oct 24, 1939
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G06 - COMPUTING CALCULATING COUNTING
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2172062
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Patent number 2,172,062
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Issue date Sep 5, 1939
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G06 - COMPUTING CALCULATING COUNTING
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2165220
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Patent number 2,165,220
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G06 - COMPUTING CALCULATING COUNTING
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2136694
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Patent number 2,136,694
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G06 - COMPUTING CALCULATING COUNTING
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2093529
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Patent number 2,093,529
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G06 - COMPUTING CALCULATING COUNTING
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2079429
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Patent number 2,079,429
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G06 - COMPUTING CALCULATING COUNTING
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2031686
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Patent number 2,031,686
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Issue date Feb 25, 1936
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G06 - COMPUTING CALCULATING COUNTING
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1982722
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Patent number 1,982,722
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Issue date Dec 4, 1934
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G06 - COMPUTING CALCULATING COUNTING
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1982020
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Patent number 1,982,020
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Issue date Nov 27, 1934
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G06 - COMPUTING CALCULATING COUNTING