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经营范围
发明名称
EAR CAP HOLDER
摘要
申请公布号
SU835442(A1)
申请公布日期
1981.06.07
申请号
SU19772502355
申请日期
1977.06.29
申请人
SP K BYURO VTS NAUCHNO- I I OKHRANY TRUDA VTSSPS
发明人
ALIMOV NIKOLAJ P,SU;RYBAKOV ANATOLIJ N,SU;LAGUNOV LEONID F,SU;VASILEV YURIJ M,SU;GOLIKOV VITALIJ V,SU;PETRASHKIN EVGENIJ S,SU;VANAEV VLADIMIR S,SU
分类号
H04R1/10;(IPC1-7):A61F11/02
主分类号
H04R1/10
代理机构
代理人
主权项
地址
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