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经营范围
发明名称
GATE VALVE
摘要
申请公布号
CA888042(A)
申请公布日期
1971.12.14
申请号
CAD888042
申请日期
申请人
M AND J DEVELOPMENT COMPANY
发明人
MARVIN H. GROVE;LYLE R. VAN ARSDALE
分类号
主分类号
代理机构
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