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发明名称
Valve structure and method of installation
摘要
申请公布号
US2913220(A)
申请公布日期
1959.11.17
申请号
US19550516685
申请日期
1955.06.20
申请人
COVER MARTIN L
发明人
COVER MARTIN L.
分类号
F16K27/04
主分类号
F16K27/04
代理机构
代理人
主权项
地址
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