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发明名称
VARIOOBJEKTIV
摘要
申请公布号
DE2731257(A1)
申请公布日期
1978.09.28
申请号
DE19772731257
申请日期
1977.07.11
申请人
OPTIGON RESEARCH AND DEVELOPMENT CORP.
发明人
I. BETENSKY,ELLIS
分类号
G02B15/167;G02B15/17;G02B15/22;(IPC1-7):G02B15/14
主分类号
G02B15/167
代理机构
代理人
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