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发明名称
SCHALTUNGSANORDNUNG ZUR TONSIGNALAENDERUNG
摘要
申请公布号
DE2239701(B2)
申请公布日期
1977.02.10
申请号
DE19722239701
申请日期
1972.08.11
申请人
发明人
分类号
H03G5/02;H04H60/04;(IPC1-7):H04H7/00
主分类号
H03G5/02
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代理人
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