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发明名称
ALLGEMEIN FUER HELME BESTIMMTER TRAEGER MIT TELEFON-SPRECHEINRICHTUNG
摘要
申请公布号
DE3043030(A1)
申请公布日期
1981.09.03
申请号
DE19803043030
申请日期
1980.11.14
申请人
NAVA,PIER LUIGI
发明人
LUIGI NAVA,PIER
分类号
A42B3/00;A42B1/24;A42B3/12;A42B3/30;H01Q1/27;H04M1/05;(IPC1-7):H04M1/05;H04B1/00;H04R1/00
主分类号
A42B3/00
代理机构
代理人
主权项
地址
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