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发明名称
Valve
摘要
申请公布号
US2573648(A)
申请公布日期
1951.10.30
申请号
US19480052621
申请日期
1948.10.04
申请人
THE CHAPMAN VALVE MANUFACTURING CO.
发明人
NICKERSON ELMER K.
分类号
F16K15/18
主分类号
F16K15/18
代理机构
代理人
主权项
地址
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