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发明名称
Zipper manufacturing machinery
摘要
申请公布号
US2437793(A)
申请公布日期
1948.03.16
申请号
US19440555572
申请日期
1944.09.23
申请人
DAVID SILBERMAN
发明人
SILBERMAN DAVID
分类号
B21D53/50
主分类号
B21D53/50
代理机构
代理人
主权项
地址
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