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发明名称
Improvements in or relating to punch mechanisms
摘要
申请公布号
GB801786(A)
申请公布日期
1958.09.24
申请号
GB19560001623
申请日期
1956.01.17
申请人
POWERS-SAMAS ACCOUNTING MACHINES LIMITED
发明人
WILLIAMS PETER FRANCIS;YANDELL RONALD PERCY BAWDEN
分类号
G06F3/08
主分类号
G06F3/08
代理机构
代理人
主权项
地址
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