VIEWFINDER HAVING A VARIABLE SIZE FRAME IMAGE,申请号USD3589236-传众专利搜索

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发明名称	VIEWFINDER HAVING A VARIABLE SIZE FRAME IMAGE
摘要
申请公布号	US3589236(A)	申请公布日期	1971.06.29
申请号	USD3589236	申请日期	1969.02.10
申请人	POLAROID CORP.	发明人	RICHARD R. WAREHAM
分类号	G03B13/02;(IPC1-7):G03B13/12;G03B13/22	主分类号	G03B13/02
代理机构		代理人
主权项
地址

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