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发明名称
Punch
摘要
申请公布号
US1948215(A)
申请公布日期
1934.02.20
申请号
US19310545109
申请日期
1931.06.17
申请人
VICTOR KALFUS
发明人
KALFUS VICTOR
分类号
B21D28/34
主分类号
B21D28/34
代理机构
代理人
主权项
地址
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