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发明名称
Attachment for eyeglasses
摘要
申请公布号
US2217475(A)
申请公布日期
1940.10.08
申请号
US19390296433
申请日期
1939.09.25
申请人
GOEHRING SR FRANK E
发明人
SR. FRANK E. GOEHRING,
分类号
G02C7/06;G02C7/08;G02C9/04
主分类号
G02C7/06
代理机构
代理人
主权项
地址
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