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发明名称
Method of making tube couplings
摘要
申请公布号
US2332353(A)
申请公布日期
1943.10.19
申请号
US19410413266
申请日期
1941.10.02
申请人
THE WEATHERHEAD COMPANY
发明人
STECHER HENRY D.
分类号
B21K1/16;F16L19/04
主分类号
B21K1/16
代理机构
代理人
主权项
地址
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