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发明名称
Connectable concentric record discs
摘要
申请公布号
US3332690(A)
申请公布日期
1967.07.25
申请号
US19650430604
申请日期
1965.02.05
申请人
SANTE MICHETTI
发明人
MICHETTI SANTE
分类号
G11B3/00
主分类号
G11B3/00
代理机构
代理人
主权项
地址
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