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发明名称
Valve
摘要
申请公布号
US2299341(A)
申请公布日期
1942.10.20
申请号
US19410381485
申请日期
1941.03.03
申请人
REED ROLLER BIT COMPANY
发明人
OHLS ROBERT L.
分类号
F16K5/18
主分类号
F16K5/18
代理机构
代理人
主权项
地址
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