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发明名称
PERFORATING APPARATUS
摘要
申请公布号
CA614647(A)
申请公布日期
1961.02.14
申请号
CAD614647
申请日期
申请人
INTERNATIONAL BUSINESS MACHINES CORPORATION
发明人
CARL F. ABISSI
分类号
B21D;B26D
主分类号
B21D
代理机构
代理人
主权项
地址
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