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发明名称
Varifocal objective system
摘要
申请公布号
US2906172(A)
申请公布日期
1959.09.29
申请号
US19560585514
申请日期
1956.05.17
申请人
JOS. SCHNEIDER & CO.
发明人
KLEMT GUNTER
分类号
G02B15/00
主分类号
G02B15/00
代理机构
代理人
主权项
地址
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