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发明名称
Improvements in and relating to valve seating elements
摘要
申请公布号
GB729713(A)
申请公布日期
1955.05.11
申请号
GB19530025039
申请日期
1953.09.10
申请人
THE PARKER APPLIANCE COMPANY
发明人
BASHARK NICHOLAS
分类号
F16K3/02
主分类号
F16K3/02
代理机构
代理人
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