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发明名称
Return bend coupling
摘要
申请公布号
US2209790(A)
申请公布日期
1940.07.30
申请号
US19380245818
申请日期
1938.12.15
申请人
MURPHY JR JOHN
发明人
JR. JOHN MURPHY,
分类号
F16L39/00
主分类号
F16L39/00
代理机构
代理人
主权项
地址
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