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经营范围
发明名称
Procédé permettant d'assurer l'étanchéité d'un piston dans un cylindre, ovalisé ou non, et segment de piston particulièrement destiné à la mise en oeuvre de ce procédé
摘要
申请公布号
FR48703(E)
申请公布日期
1938.06.21
申请号
FRD48703
申请日期
1937.01.27
申请人
发明人
CHABASSOL ANDRE
分类号
F16J9/20
主分类号
F16J9/20
代理机构
代理人
主权项
地址
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