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发明名称
Pressure vacuum valve
摘要
申请公布号
US2045780(A)
申请公布日期
1936.06.30
申请号
US19340737360
申请日期
1934.07.28
申请人
BUTTERWORTH SYSTEM INCORPORATED
发明人
JETT GEORGE H.
分类号
F16K17/196
主分类号
F16K17/196
代理机构
代理人
主权项
地址
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