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发明名称
Verfahren zur Vervielfältigung von Schallaufnahmen bezw. Tonbildaufnahmen.
摘要
申请公布号
CH186576(A)
申请公布日期
1936.09.30
申请号
CHD186576
申请日期
1935.09.09
申请人
CZEIJA,OSKAR;LIERG,FRIEDRICH,DR.
发明人
CZEIJA,OSKAR;LIERG,FRIEDRICH,DR.
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