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发明名称
Valve
摘要
申请公布号
US1944428(A)
申请公布日期
1934.01.23
申请号
US19290412554
申请日期
1929.12.07
申请人
NATIONAL WELDING EQUIPMENT COMPANY
发明人
HAMMON GEORGE L.
分类号
F16K1/38
主分类号
F16K1/38
代理机构
代理人
主权项
地址
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