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发明名称
Changeable exhibitor
摘要
申请公布号
US3187451(A)
申请公布日期
1965.06.08
申请号
US19630292007
申请日期
1963.07.01
申请人
GARFIELD FONTAINE JOHN
发明人
FONTAINE JOHN GARFIELD
分类号
G09F11/12
主分类号
G09F11/12
代理机构
代理人
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