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发明名称
Binocular viewer
摘要
申请公布号
US2503342(A)
申请公布日期
1950.04.11
申请号
US19460708657
申请日期
1946.11.08
申请人
KNIGHT CARL W
发明人
KNIGHT CARL W.
分类号
G02B27/22
主分类号
G02B27/22
代理机构
代理人
主权项
地址
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