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发明名称
CHECK VALVE
摘要
申请公布号
US3559678(A)
申请公布日期
1971.02.02
申请号
USD3559678
申请日期
1969.01.21
申请人
DELTROL CORP.
发明人
VERNE P. DONNER
分类号
F16K15/04;(IPC1-7):F16K15/04
主分类号
F16K15/04
代理机构
代理人
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地址
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