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发明名称
Plug valve
摘要
申请公布号
GB777885(A)
申请公布日期
1957.06.26
申请号
GB19550011148
申请日期
1955.04.18
申请人
JOSEPH HEINEN
发明人
分类号
F16K5/18
主分类号
F16K5/18
代理机构
代理人
主权项
地址
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