having more than one denominational set of keys operating directly on computing mechanism

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CPC
G06C15/10

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GPHYSICS G06Computing G06CDIGITAL COMPUTERS IN WHICH ALL THE COMPUTATION IS EFFECTED MECHANICALLY G06C15/00Computing mechanisms Actuating devices therefor

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G06C15/10having more than one denominational set of keys operating directly on computing mechanism

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Patents Grantslast 30 patents

Information Patent Grant
2741427
- Patent number 2,741,427
- Issue date Apr 10, 1956
- G06 - COMPUTING CALCULATING COUNTING