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发明名称
Focusing lens mount
摘要
申请公布号
US1820484(A)
申请公布日期
1931.08.25
申请号
US19290414259
申请日期
1929.12.16
申请人
OWENS DEVELOPMENT CORPORATION
发明人
OWENS FREEMAN H.
分类号
G02B7/04
主分类号
G02B7/04
代理机构
代理人
主权项
地址
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