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3109091
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G06 - COMPUTING CALCULATING COUNTING
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3057554
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G06 - COMPUTING CALCULATING COUNTING
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3002689
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G06 - COMPUTING CALCULATING COUNTING
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2660373
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G06 - COMPUTING CALCULATING COUNTING
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2615624
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G06 - COMPUTING CALCULATING COUNTING
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2611538
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G06 - COMPUTING CALCULATING COUNTING
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2605964
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G06 - COMPUTING CALCULATING COUNTING
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2600938
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G06 - COMPUTING CALCULATING COUNTING
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2598095
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G06 - COMPUTING CALCULATING COUNTING
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2588923
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G06 - COMPUTING CALCULATING COUNTING
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2536906
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Patent number 2,536,906
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G06 - COMPUTING CALCULATING COUNTING
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2536951
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Patent number 2,536,951
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G06 - COMPUTING CALCULATING COUNTING
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2528453
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G06 - COMPUTING CALCULATING COUNTING
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2493862
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G06 - COMPUTING CALCULATING COUNTING
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2473466
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G06 - COMPUTING CALCULATING COUNTING
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2467419
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G06 - COMPUTING CALCULATING COUNTING
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2424091
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G06 - COMPUTING CALCULATING COUNTING
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2413859
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G06 - COMPUTING CALCULATING COUNTING
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2403480
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G06 - COMPUTING CALCULATING COUNTING
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2394925
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G06 - COMPUTING CALCULATING COUNTING
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2375275
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G06 - COMPUTING CALCULATING COUNTING
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2374374
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G06 - COMPUTING CALCULATING COUNTING
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2366193
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G06 - COMPUTING CALCULATING COUNTING
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2352027
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G06 - COMPUTING CALCULATING COUNTING
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2350499
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G06 - COMPUTING CALCULATING COUNTING
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2350698
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Issue date Jun 6, 1944
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G06 - COMPUTING CALCULATING COUNTING
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2344885
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G06 - COMPUTING CALCULATING COUNTING
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2344626
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G06 - COMPUTING CALCULATING COUNTING
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2337082
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Issue date Dec 21, 1943
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G06 - COMPUTING CALCULATING COUNTING