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发明名称
Pipe joint
摘要
申请公布号
US2488245(A)
申请公布日期
1949.11.15
申请号
US19470778159
申请日期
1947.10.06
申请人
STANDARD CONCRETE PRODUCTS CORP.
发明人
SMITH GRADY E.
分类号
F16L21/04;F16L25/00
主分类号
F16L21/04
代理机构
代理人
主权项
地址
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