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发明名称
DIAPHRAGM EQUIPMENT IN OPTICAL INSTRUMENTS
摘要
申请公布号
US3591251(A)
申请公布日期
1971.07.06
申请号
USD3591251
申请日期
1969.04.30
申请人
VEB CARL ZEISS JENA
发明人
PETER BLANKENBURG
分类号
G01C11/04;G02B5/00;(IPC1-7):G02B27/22
主分类号
G01C11/04
代理机构
代理人
主权项
地址
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