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发明名称
Kegelblende mit umlaufender Feuerschutzklappe
摘要
申请公布号
DE950259(C)
申请公布日期
1956.10.04
申请号
DE1954V007909
申请日期
1954.10.16
申请人
VEB ZEISS IKON DRESDEN
发明人
KUHNERT RUDOLF;ROTHE JOHANNES
分类号
G03B21/18
主分类号
G03B21/18
代理机构
代理人
主权项
地址
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