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发明名称
Process of forming rims for tubs
摘要
申请公布号
US1771955(A)
申请公布日期
1930.07.29
申请号
US19260137720
申请日期
1926.09.25
申请人
ACME STEEL COMPANY
发明人
FORK WILLIAM C.;KRONQUEST WILLIAM C.
分类号
B21D53/30
主分类号
B21D53/30
代理机构
代理人
主权项
地址
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