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发明名称
Butterfly valve having adjustable means for the valve seat-engaging surface
摘要
申请公布号
US3204928(A)
申请公布日期
1965.09.07
申请号
US19630258371
申请日期
1963.02.04
申请人
HENRY PRATT COMPANY
发明人
FAWKES DONALD G.
分类号
F16K1/22
主分类号
F16K1/22
代理机构
代理人
主权项
地址
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