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发明名称
IMPROVEMENTS IN AND RELATING TO BALL VALVES
摘要
申请公布号
GB1218228(A)
申请公布日期
1971.01.06
申请号
GB19680057754
申请日期
1968.12.05
申请人
COMMISSARIAT A L'ENERGIE ATOMIQUE
发明人
JEAN PRONOST
分类号
F16K15/04
主分类号
F16K15/04
代理机构
代理人
主权项
地址
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