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发明名称
Auxiliary nosepiece for spectacle frames
摘要
申请公布号
US3391976(A)
申请公布日期
1968.07.09
申请号
US19650468085
申请日期
1965.06.29
申请人
WELSH MANUFACTURING COMPANY
发明人
LINDBLOM FRANK W.
分类号
G02C5/12
主分类号
G02C5/12
代理机构
代理人
主权项
地址
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