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发明名称
A new or improved automatically operable by-pass valve
摘要
申请公布号
GB736222(A)
申请公布日期
1955.09.07
申请号
GB19520023873
申请日期
1952.09.23
申请人
EXACTOR LIMITED
发明人
PAWLING FRANK
分类号
F15B21/00;F16N25/02
主分类号
F15B21/00
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代理人
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