Photographic printing frame,申请号US19420470181-传众专利搜索

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发明名称	Photographic printing frame
摘要
申请公布号	US2386888(A)	申请公布日期	1945.10.16
申请号	US19420470181	申请日期	1942.12.26
申请人	MAX EGELMAN	发明人	EGELMAN MAX
分类号	G03B27/58	主分类号	G03B27/58
代理机构		代理人
主权项
地址

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