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发明名称
BATTERIE - SIGNALLAMPE.
摘要
申请公布号
DE1644798(U)
申请公布日期
1952.10.02
申请号
DE19521644798U
申请日期
1952.02.16
申请人
ELEKTROTECHNISCHE FABRIK WIETEK & CO., G.M.B.H.
发明人
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