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发明名称
Albada viewfinder with integral reflector and lens means for viewing external pointer
摘要
申请公布号
US3175457(A)
申请公布日期
1965.03.30
申请号
US19600033198
申请日期
1960.06.01
申请人
VOIGTLANDER A.G.
发明人
PAPKE FRIEDRICH;REICHE WILHELM;GREGER PAUL
分类号
G02B23/14;G03B13/02
主分类号
G02B23/14
代理机构
代理人
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