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发明名称
PROJECTOR FOR PHOTOGRAPHIC TRANSPARENCIES
摘要
申请公布号
US3572920(A)
申请公布日期
1971.03.30
申请号
USD3572920
申请日期
1969.09.19
申请人
ROBERT BOSCH ELEKTRONIK UND PHOTOKINO GMBH.
发明人
ROLF HEINZMANN
分类号
G03B23/04;(IPC1-7):G03B23/02
主分类号
G03B23/04
代理机构
代理人
主权项
地址
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