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发明名称
SCHALTUNGSANORDNUNG FUER EIN FREISPRECHERTELEFON
摘要
申请公布号
AT356717(B)
申请公布日期
1980.05.27
申请号
AT19770006057
申请日期
1977.08.22
申请人
DASY INTER S.A.
发明人
BROSOW JOERGEN ING.
分类号
H04M1/60;H04M1/62;H04M9/10;(IPC1-7):H04M9/10
主分类号
H04M1/60
代理机构
代理人
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地址
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