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发明名称
VALVE
摘要
申请公布号
CA491986(A)
申请公布日期
1953.04.14
申请号
CAD491986
申请日期
申请人
ALLIED CHEMICAL AND DYE CORPORATION
发明人
JOHN J. OLSEN
分类号
主分类号
代理机构
代理人
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地址
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