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发明名称
Testanordning ved Telefonanlæg med Hoved- og Undercentraler.
摘要
申请公布号
DK59243(C)
申请公布日期
1941.12.01
申请号
DKD59243
申请日期
1940.03.06
申请人
>>FIDES GESELLSCHAFT FUER DIE VERWALTUNG UND VERWERTUNG VON GEWERBLICHEN SCHUTZRECHTEN MIT BESCHRAENKTER HAFTUNG
发明人
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