FRAME USEFUL AS LENS SUPPORT,申请号USD3574444-传众专利搜索

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发明名称	FRAME USEFUL AS LENS SUPPORT
摘要
申请公布号	US3574444(A)	申请公布日期	1971.04.13
申请号	USD3574444	申请日期	1968.07.09
申请人	MINNESOTA MINING AND MFG. CO.	发明人	RICHARD D. HIPP JR.
分类号	G02B7/02;(IPC1-7):G02B7/02	主分类号	G02B7/02
代理机构		代理人
主权项
地址

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