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发明名称
Butterfly valve seating arrangement
摘要
申请公布号
US2936153(A)
申请公布日期
1960.05.10
申请号
US19550528930
申请日期
1955.08.17
申请人
THE A. P. SMITH MANUFACTURING COMPANY
发明人
GAFFIN HARRY
分类号
F16K1/226
主分类号
F16K1/226
代理机构
代理人
主权项
地址
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