Selective electrical lens adjusting machanisms for variable magnification systems,申请号US19540411060-传众专利搜索

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发明名称	Selective electrical lens adjusting machanisms for variable magnification systems
摘要
申请公布号	US2782683(A)	申请公布日期	1957.02.26
申请号	US19540411060	申请日期	1954.02.18
申请人	WALKER JOSEPH B	发明人	WALKER JOSEPH B.
分类号	G02B15/14	主分类号	G02B15/14
代理机构		代理人
主权项
地址

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