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发明名称
DUAL SAFETY VALVE ASSEMBLY
摘要
申请公布号
CA812116(A)
申请公布日期
1969.05.06
申请号
CAD812116
申请日期
申请人
THE DOLE VALVE COMPANY
发明人
HOWARD L. ERICKSON
分类号
主分类号
代理机构
代理人
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