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发明名称
Field glass and protective cover therefor
摘要
申请公布号
US2481409(A)
申请公布日期
1949.09.06
申请号
US19470747711
申请日期
1947.05.13
申请人
SAMUEL GLAUSER
发明人
GLAUSER SAMUEL
分类号
G02B23/16
主分类号
G02B23/16
代理机构
代理人
主权项
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