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发明名称
Diaphragm type pilot and main valve
摘要
申请公布号
US2691504(A)
申请公布日期
1954.10.12
申请号
US19500175904
申请日期
1950.07.26
申请人
JONES GEORGE O
发明人
JONES GEORGE O.
分类号
G05D7/01
主分类号
G05D7/01
代理机构
代理人
主权项
地址
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