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经营范围
发明名称
METHOD OF PROCESSING MAGNETIC HEAD WORKING SURFACE
摘要
申请公布号
SU838722(A1)
申请公布日期
1981.06.15
申请号
SU19792814653
申请日期
1979.09.17
申请人
PERMSKIJ POLT INSTITUT
发明人
CHISTYAKOV MIKHAIL V,SU;IVANKIN YURIJ N,SU;GOLDIN GRIGORIJ V,SU
分类号
(IPC1-7):G11B5/42
主分类号
(IPC1-7):G11B5/42
代理机构
代理人
主权项
地址
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