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发明名称
Stem and stuffing box construction for non-rising stem gate valves
摘要
申请公布号
GB817426(A)
申请公布日期
1959.07.29
申请号
GB19560015841
申请日期
1956.05.22
申请人
ALEXANDER SAMUEL VOLPIN
发明人
分类号
F16K41/00;F16K41/02
主分类号
F16K41/00
代理机构
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