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发明名称
Button manufacture
摘要
申请公布号
US2016238(A)
申请公布日期
1935.10.01
申请号
US19310576104
申请日期
1931.11.19
申请人
UNIVERSAL BUTTON FASTENING & BUTTON COMPANY
发明人
FORD IRA D.;CLARK JOHN M.
分类号
B21D53/48
主分类号
B21D53/48
代理机构
代理人
主权项
地址
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