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发明名称
COVER
摘要
申请公布号
SU740222(A1)
申请公布日期
1980.06.15
申请号
SU19782623277
申请日期
1978.06.02
申请人
LE NII PROTEZIROVANIYA
发明人
VORONTSOV FEDOR S,SU
分类号
A47G23/03;(IPC1-7):A47G23/03
主分类号
A47G23/03
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代理人
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