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发明名称
(B1) ;HEADPHONE
摘要
申请公布号
PL221026(A1)
申请公布日期
1981.07.24
申请号
PL19790221026
申请日期
1979.12.29
申请人
ZAKLADY WYTWORCZE GLOSNIKOW UN
发明人
PONIEWIERSKI ANDRZEJ;URBANIAK PIOTR;KOSTRZEWSKI RYSZARD
分类号
H04R;H04R1/10;(IPC1-7):H04R/
主分类号
H04R
代理机构
代理人
主权项
地址
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