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发明名称
BALL VALVE
摘要
申请公布号
CA556711(A)
申请公布日期
1958.04.29
申请号
CAD556711
申请日期
申请人
ROCKWELL MANUFACTURING COMPANY
发明人
GEORGE F. SCHERER
分类号
主分类号
代理机构
代理人
主权项
地址
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