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Patent:GB1308881


Brevetto:GB 1308881
Titolo:Calculating machine
Data:07.03.1973
Luogo:Tokyo, Japan
Nazione:Gran Bretagna
Persona:
Ditta:Citizen (P) Watch Co.
Link interni:Citizen-215S
Keywords:
Link al brevetto:
(without guarantee)
 GB1308881


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US3741470 Bild

Foreign Application Priority Data
July 6, 1970
Japan................................ 45.158896
See also Patent:US3741470 with inventors' names

An adding machine in which a "1/2" key provided on a key board in addition to numeral setting keys for numeral 0 - 9 and function keys is operatively connected with the numeral setting mechanism for "5" key and a mechanism is provided for automatically selecting a 0-pin depending upon whether the lowest digit position of a numeral set in the machine is "0.0" or "1/2 (0.5)," whereby "0" is automatically added to the numeral set in the machine only when the "1/2" key is not depressed, while "5" is added when the "1/2" key is depressed, and thus the addition or subtraction of numerals is performed with the digit positions of one numeral in accord with those of another numeral.