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发明名称
Method of manufacturing pipe fittings and the like
摘要
申请公布号
US2647303(A)
申请公布日期
1953.08.04
申请号
US19480060517
申请日期
1948.11.17
申请人
Z & W MACHINE PRODUCTS, INC.
发明人
ZIHERL FRANK
分类号
F16L15/00
主分类号
F16L15/00
代理机构
代理人
主权项
地址
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