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发明名称
Check valve
摘要
申请公布号
US4964423(A)
申请公布日期
1990.10.23
申请号
US19890392888
申请日期
1989.08.14
申请人
NUPRO COMPANY
发明人
GAUSMAN, THEODORE J.;SCHEFFEL, GARY W.
分类号
F16K15/02;F16K15/12
主分类号
F16K15/02
代理机构
代理人
主权项
地址
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