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发明名称
Improvements in fluid flow controlling devices
摘要
申请公布号
GB693244(A)
申请公布日期
1953.06.24
申请号
GB19510002942
申请日期
1951.02.06
申请人
RENE ETIENNE ROCHETTE
发明人
分类号
A62B9/02
主分类号
A62B9/02
代理机构
代理人
主权项
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