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发明名称
Folding spectacles
摘要
申请公布号
US1975894(A)
申请公布日期
1934.10.09
申请号
US19320620947
申请日期
1932.07.05
申请人
DAVID EGLINTON WILLIAM
发明人
EGLINTON WILLIAM DAVID
分类号
G02C5/00
主分类号
G02C5/00
代理机构
代理人
主权项
地址
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