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发明名称
Pilot-operated valves
摘要
申请公布号
US2854994(A)
申请公布日期
1958.10.07
申请号
US19560615832
申请日期
1956.10.15
申请人
NATIONAL TANK COMPANY
发明人
GLASGOW CLARENCE O.
分类号
F16K31/34;F16T1/24;G05D9/02
主分类号
F16K31/34
代理机构
代理人
主权项
地址
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