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发明名称
Six-lens objective consisting of three members air spaced apart
摘要
申请公布号
US2676516(A)
申请公布日期
1954.04.27
申请号
US19520315534
申请日期
1952.10.18
申请人
LUDWIG BERTELE
发明人
BERTELE LUDWIG
分类号
C07C2/86;G02B9/12
主分类号
C07C2/86
代理机构
代理人
主权项
地址
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