Change calculating apparatus
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United States of America Patent
Stats
-
Feb 19, 1980
Grant Date -
N/A
app pub date -
May 30, 1978
filing date -
Jun 3, 1977
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A change calculation apparatus comprises a plurality of keys for indicating monetary units, purchasing amount storing means for storing the purchasing amount of sales to a customer, and calculating means for subtracting from the unitary data of the monetary unit corresponding to the key actuated the data below the unitary data of the monetary unit in the purchasing amount stored in the purchasing amount storing means.
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