by successive multiplication or division by 2

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    2690507

    • Patent number 2,690,507
    • Issue date Sep 28, 1954
    • G06 - COMPUTING CALCULATING COUNTING
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    2623115

    • Patent number 2,623,115
    • Issue date Dec 23, 1952
    • G06 - COMPUTING CALCULATING COUNTING
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    2544126

    • Patent number 2,544,126
    • Issue date Mar 6, 1951
    • G06 - COMPUTING CALCULATING COUNTING

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