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经营范围
发明名称
Device for bending coils
摘要
申请公布号
US2870816(A)
申请公布日期
1959.01.27
申请号
US19560562121
申请日期
1956.01.30
申请人
CALUMET & HECLA, INC.
发明人
GREENE RAYMOND H.
分类号
B21D11/06
主分类号
B21D11/06
代理机构
代理人
主权项
地址
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