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发明名称
VALVE
摘要
申请公布号
CA906978(A)
申请公布日期
1972.08.08
申请号
CAD906978
申请日期
申请人
CHALLENGE-COOK BROS.
发明人
DUANE O. PERRIN
分类号
F16K3/22;F16K31/12;F16K41/04;(IPC1-7):F16K41/04
主分类号
F16K3/22
代理机构
代理人
主权项
地址
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