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发明名称
Einrichtung zum Schutz von Verschlussvorrichtungen auf Schiffen, insbesondere U-Booten, gegen Festfrieren
摘要
申请公布号
DE706396(C)
申请公布日期
1941.05.26
申请号
DE1939D079790D
申请日期
1939.02.01
申请人
DEUTSCHE SCHIFF- UND MASCHINENBAU AKT.-GES.
发明人
VOGEL HANS
分类号
B63G8/04
主分类号
B63G8/04
代理机构
代理人
主权项
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