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发明名称
CHECK VALVE
摘要
申请公布号
CA724450(A)
申请公布日期
1965.12.28
申请号
CAD724450
申请日期
申请人
UNITED STATES SMELTING REFINING AND MINING COMPANY
发明人
ROY D. NEALLEY
分类号
主分类号
代理机构
代理人
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地址
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