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发明名称
DIAPROJEKTOR
摘要
申请公布号
DE7819966(U1)
申请公布日期
1981.08.27
申请号
DE19780019966U
申请日期
1978.07.03
申请人
LISSNER, HANS, 4000 DUESSELDORF, DE
发明人
分类号
G03B21/28;(IPC1-7):G03B21/28
主分类号
G03B21/28
代理机构
代理人
主权项
地址
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