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经营范围
发明名称
DYNAMIC FOCUS OF VIDEODISC OBJECTIVE LENS
摘要
申请公布号
AU518855(B2)
申请公布日期
1981.10.22
申请号
AU19800065097
申请日期
1980.12.04
申请人
DISCOVISION ASSOCIATES
发明人
J.E. ELLIOTT
分类号
G11B7/00;G11B7/09;G11B21/10
主分类号
G11B7/00
代理机构
代理人
主权项
地址
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