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发明名称
Polarisiertes Telegraphenrelais mit je einer Spule des Steuerkreises auf jedem Schenkel von zwei U-foermigen Weicheisenkernen
摘要
申请公布号
DE731298(C)
申请公布日期
1943.02.05
申请号
DE1937N040854D
申请日期
1937.06.19
申请人
TELEFONBAU UND NORMALZEIT G.M.B.H.
发明人
BURKHARD FRANZ
分类号
H01H51/22
主分类号
H01H51/22
代理机构
代理人
主权项
地址
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