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发明名称
Fremgangsmaade og Kobling til Gebyroverføring i selvvælgende Fjernskriftsanlæg.
摘要
申请公布号
DK56137(C)
申请公布日期
1939.05.08
申请号
DKD56137
申请日期
1938.01.06
申请人
HEINRICH BARTH
发明人
HEINRICH BARTH
分类号
主分类号
代理机构
代理人
主权项
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