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发明名称
Wähler für selbsttätige Fernsprechanlagen.
摘要
申请公布号
AT160014(B)
申请公布日期
1941.01.10
申请号
ATD160014
申请日期
1937.08.14
申请人
GOTTHILF ANSGARIUS BETULANDER
发明人
GOTTHILF ANSGARIUS BETULANDER
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