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发明名称
KOPFHOERER MIT MIKROPHON UND LAUTWANDLER
摘要
申请公布号
DE3831207(A1)
申请公布日期
1989.04.13
申请号
DE19883831207
申请日期
1988.09.14
申请人
GN NETCOM A/S, KOPENHAGEN/KOEBENHAVN, DK
发明人
TRAEGAERDH, JAN, KOPENHAGEN/KOEBENHAVN, DK;JOESSON, BJARNE, BROENSHOEJ, DK;JENSEN, FINN, STRUER, DK
分类号
H04M1/05;H04R1/10
主分类号
H04M1/05
代理机构
代理人
主权项
地址
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