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法人/股东/高管

发明名称
摘要
申请公布号	SU446921(A1)	申请公布日期	1974.10.15
申请号	SU19731884787	申请日期	1973.02.20
申请人		发明人
分类号	H01L21/677;(IPC1-7):H01L7/68	主分类号	H01L21/677
代理机构		代理人
主权项
地址

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