Prescribes the arrangement of the 10 numeric keys, one through zero, for adding and calculating machines of the 10-key type.
- Published:
- 01/01/1979
Original price was: $60.00.$30.00Current price is: $30.00.
Prescribes the arrangement of the 10 numeric keys, one through zero, for adding and calculating machines of the 10-key type.
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