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发明名称
Changeable orifice valve
摘要
申请公布号
US2114066(A)
申请公布日期
1938.04.12
申请号
US19370147044
申请日期
1937.06.08
申请人
WYNKOOP JESSE C
发明人
WYNKOOP JESSE C.
分类号
G01F1/42
主分类号
G01F1/42
代理机构
代理人
主权项
地址
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