RECORD DISK AND METHOD FOR PRODUCING THE SAME WITH CONSTANT WIDTH GROOVE,申请号KR1019760000133-传众专利搜索

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发明名称	RECORD DISK AND METHOD FOR PRODUCING THE SAME WITH CONSTANT WIDTH GROOVE
摘要
申请公布号	KR1019810000040(B1)	申请公布日期	1981.02.02
申请号	KR1019760000133	申请日期	1976.01.17
申请人		发明人
分类号		主分类号
代理机构		代理人
主权项
地址

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