Viewing device for positive photographic prints,申请号US19480035937-传众专利搜索

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发明名称	Viewing device for positive photographic prints
摘要
申请公布号	US2635371(A)	申请公布日期	1953.04.21
申请号	US19480035937	申请日期	1948.06.29
申请人	LEANDRO MAZZOCCO	发明人	MAZZOCCO LEANDRO
分类号	G02B27/02	主分类号	G02B27/02
代理机构		代理人
主权项
地址

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