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发明名称
Tangent bender and expansible die combination
摘要
申请公布号
US2515326(A)
申请公布日期
1950.07.18
申请号
US19490109682
申请日期
1949.08.11
申请人
BATH CYRIL J
发明人
BATH CYRIL J.
分类号
B21D11/20
主分类号
B21D11/20
代理机构
代理人
主权项
地址
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