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发明名称
Lens bracket
摘要
申请公布号
US1845597(A)
申请公布日期
1932.02.16
申请号
US19300475495
申请日期
1930.08.15
申请人
HANCOCK WINFIELD S
发明人
HANCOCK WINFIELD S.
分类号
G02C1/02
主分类号
G02C1/02
代理机构
代理人
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