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发明名称
TRAGBAND FUER KOPFHOERER MIT VERSTELLBARER SPANNUNG.
摘要
申请公布号
DE269549(T1)
申请公布日期
1988.09.22
申请号
DE19870630246T
申请日期
1987.11.19
申请人
TELEX COMMUNICATIONS, INC., MINNEAPOLIS, MINN., US
发明人
FLYGSTAD, DEAN W., APPLE VALLEY MINNESOTA 55124, US
分类号
H04R1/10;(IPC1-7):H04R1/10
主分类号
H04R1/10
代理机构
代理人
主权项
地址
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