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发明名称
Valve
摘要
申请公布号
US1996384(A)
申请公布日期
1935.04.02
申请号
US19330681812
申请日期
1933.07.24
申请人
NEWBERN RAYMOND B
发明人
NEWBERN RAYMOND B.
分类号
F16K1/30
主分类号
F16K1/30
代理机构
代理人
主权项
地址
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