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发明名称
Gang punch
摘要
申请公布号
US1965975(A)
申请公布日期
1934.07.10
申请号
US19330666320
申请日期
1933.04.15
申请人
INTERNATIONAL BUSINESS MACHINES CORPORATION
发明人
FORD EUGENE A.
分类号
主分类号
代理机构
代理人
主权项
地址
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