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发明名称
Portable planetarium
摘要
申请公布号
US3250024(A)
申请公布日期
1966.05.10
申请号
US19640416187
申请日期
1964.11.24
申请人
FRED S. LONG;RICHARD L. CARO
发明人
DOUTHITT CLAUDE A.;WILSON MYRON I.
分类号
G09B27/02
主分类号
G09B27/02
代理机构
代理人
主权项
地址
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