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发明名称
Pipe fitting
摘要
申请公布号
US2551393(A)
申请公布日期
1951.05.01
申请号
US19490082772
申请日期
1949.03.22
申请人
PINGER ROLAND W
发明人
PINGER ROLAND W.
分类号
F16L21/025
主分类号
F16L21/025
代理机构
代理人
主权项
地址
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