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经营范围
发明名称
Monocular optical instrument
摘要
申请公布号
US1837207(A)
申请公布日期
1931.12.22
申请号
US19280301219
申请日期
1928.08.22
申请人
COVER HARVEY S
发明人
COVER HARVEY S.
分类号
G02B23/00
主分类号
G02B23/00
代理机构
代理人
主权项
地址
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