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发明名称
Valve
摘要
申请公布号
US2484940(A)
申请公布日期
1949.10.18
申请号
US19470758958
申请日期
1947.07.03
申请人
FRANZHEIM GEORGE W
发明人
FRANZHEIM GEORGE W.
分类号
F16K17/00
主分类号
F16K17/00
代理机构
代理人
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