DEVICE FOR ADVANCING AND REWINDING CONSECUTIVE FILM FRAMES,ESPECIALLY FOR PROJECTORS OF WRITINGS,申请号PL19760189863-传众专利搜索

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发明名称	DEVICE FOR ADVANCING AND REWINDING CONSECUTIVE FILM FRAMES,ESPECIALLY FOR PROJECTORS OF WRITINGS
摘要
申请公布号	PL108872(B1)	申请公布日期	1980.05.31
申请号	PL19760189863	申请日期	1976.05.25
申请人		发明人
分类号	G03B23/00;(IPC1-7):G03B23/00	主分类号	G03B23/00
代理机构		代理人
主权项
地址

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