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发明名称
Dispositif d'étanchéité pour l'arbre de turbines hydrauliques, de pompes, ou d'hélices de bateaux
摘要
申请公布号
FR1014712(A)
申请公布日期
1952.08.20
申请号
FRD1014712
申请日期
1950.03.16
申请人
ESCHER WYSS
发明人
分类号
B63H23/36;F03B11/00;F04D29/10;F16J15/40
主分类号
B63H23/36
代理机构
代理人
主权项
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