Picture film strip projection apparatus,申请号US19450638131-传众专利搜索

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发明名称	Picture film strip projection apparatus
摘要
申请公布号	US2451306(A)	申请公布日期	1948.10.12
申请号	US19450638131	申请日期	1945.12.29
申请人	TRAINING DEVICES, INC.	发明人	SISSON THOMAS U.
分类号	G03B1/18	主分类号	G03B1/18
代理机构		代理人
主权项
地址

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