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发明名称
Modulationseinrichtung für tönende Telegraphie von Sendern.
摘要
申请公布号
AT147993(B)
申请公布日期
1936.12.10
申请号
ATD147993
申请日期
1935.05.06
申请人
RUDOLF LIEBHART;ARNOLD DIETRICH;PETER HABIG;OTTO POESCHL
发明人
RUDOLF LIEBHART;ARNOLD DIETRICH;PETER HABIG;OTTO POESCHL
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主分类号
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