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61.Decimal accumulator for direct entry of combination code amounts 失效
Title translation: 用于直接输入组合代码金额的十进制累加器公开(公告)号:US2521382A
公开(公告)日:1950-09-05
申请号:US70145946
申请日:1946-10-05
Applicant: IBM
Inventor: LUHN HANS P
CPC classification number: G06F1/1615
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公开(公告)号:US2324221A
公开(公告)日:1943-07-13
申请号:US29589239
申请日:1939-09-21
Applicant: IBM
Inventor: LUHN HANS P
CPC classification number: D04B15/66 , B23Q15/00 , Y10T74/131 , Y10T74/22
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