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发明名称
Non-return valves
摘要
申请公布号
US3077205(A)
申请公布日期
1963.02.12
申请号
US19610089215
申请日期
1961.02.13
申请人
P. FRANKENSTEIN & SONS (MANCHESTER) LIMITED
发明人
BUTTERWORTH CLIFFORD
分类号
F16K15/14
主分类号
F16K15/14
代理机构
代理人
主权项
地址
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