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经营范围
发明名称
FILM PRESENTATION SYSTEM
摘要
申请公布号
US3609019(A)
申请公布日期
1971.09.28
申请号
USD3609019
申请日期
1969.07.28
申请人
NORTH AMERICAN PHILIPS CORP.
发明人
RICHARD J. TUBER
分类号
G03B19/18;(IPC1-7):G03B31/00
主分类号
G03B19/18
代理机构
代理人
主权项
地址
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