Semiautomatic adjustable support for picture-projecting machines,申请号US19280281871-传众专利搜索

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发明名称	Semiautomatic adjustable support for picture-projecting machines
摘要
申请公布号	US1831345(A)	申请公布日期	1931.11.10
申请号	US19280281871	申请日期	1928.05.31
申请人	INTERNATIONAL PROJECTOR CORPORATION	发明人	DINA AUGUSTO
分类号	G03B17/56	主分类号	G03B17/56
代理机构		代理人
主权项
地址

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