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发明名称
Valve
摘要
申请公布号
US1810498(A)
申请公布日期
1931.06.16
申请号
US19290344116
申请日期
1929.03.05
申请人
SERVEL, INC.
发明人
PLOEGER CLYDE EDWARD
分类号
F16K15/14
主分类号
F16K15/14
代理机构
代理人
主权项
地址
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