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发明名称
Automatic switching valve
摘要
申请公布号
US2277837(A)
申请公布日期
1942.03.31
申请号
US19390299538
申请日期
1939.10.14
申请人
PHILLIPS PETROLEUM COMPANY
发明人
AULD DONALD W.;WOODARD CLARENCE T.
分类号
F16K31/24
主分类号
F16K31/24
代理机构
代理人
主权项
地址
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