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发明名称
CHECK VALVE WITH SPRING ASSISTED FLEXIBLE AUXILIARY VALVE SEAT
摘要
申请公布号
US3548868(A)
申请公布日期
1970.12.22
申请号
USD3548868
申请日期
1968.02.14
申请人
SEALOL INC.
发明人
JOHN JOSEPH MULLANEY
分类号
F16K15/02;(IPC1-7):F16K15/02
主分类号
F16K15/02
代理机构
代理人
主权项
地址
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