Apparatus for exercising and training eyes,申请号US19390293463-传众专利搜索

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发明名称	Apparatus for exercising and training eyes
摘要
申请公布号	US2266798(A)	申请公布日期	1941.12.23
申请号	US19390293463	申请日期	1939.09.05
申请人	AMERICAN OPTICAL COMPANY	发明人	PECK WILLIAM F.
分类号	A61B3/032	主分类号	A61B3/032
代理机构		代理人
主权项
地址

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