Automatic light for spectacles,申请号US19380208165-传众专利搜索

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发明名称	Automatic light for spectacles
摘要
申请公布号	US2196543(A)	申请公布日期	1940.04.09
申请号	US19380208165	申请日期	1938.05.16
申请人	ANDERSON WILLIAM O	发明人	ANDERSON WILLIAM O.
分类号	G02C11/04	主分类号	G02C11/04
代理机构		代理人
主权项
地址

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