Photographic synchronizer testing equipment,申请号US19420460313-传众专利搜索

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发明名称	Photographic synchronizer testing equipment
摘要
申请公布号	US2353896(A)	申请公布日期	1944.07.18
申请号	US19420460313	申请日期	1942.09.30
申请人	THE FOLMER GRAFLEX CORPORATION	发明人	SPRAGUE JOSEPH A.
分类号	G03B43/00	主分类号	G03B43/00
代理机构		代理人
主权项
地址

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