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发明名称
Valve and fitting
摘要
申请公布号
US2545000(A)
申请公布日期
1951.03.13
申请号
US19440564352
申请日期
1944.11.20
申请人
RALPH WALSH
发明人
MARTIN EARNEST E.
分类号
B25D9/16;F16K15/18
主分类号
B25D9/16
代理机构
代理人
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地址
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