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发明名称
Verfahren und Vorrichtung zur Verminderung der Flüssigkeitsreibung bei Tauchmotoren.
摘要
申请公布号
AT134106(B)
申请公布日期
1933.07.10
申请号
ATD134106
申请日期
1931.05.27
申请人
SIGMUND PUMPEN BRUEDER SIGMUND
发明人
分类号
主分类号
代理机构
代理人
主权项
地址
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