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发明名称
VARIABLE FIELD OF VIEW, VARIABLE MAGNIFICATION LENS ASSEMBLY FOR MINIATURE IMAGE VIEWER
摘要
申请公布号
US4037939(A)
申请公布日期
1977.07.26
申请号
US19750578411
申请日期
1975.05.19
申请人
LATADY, WILLIAM R.
发明人
LATADY, WILLIAM R.
分类号
G02B27/02;(IPC1-7):G02B27/02
主分类号
G02B27/02
代理机构
代理人
主权项
地址
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