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发明名称
摘要
申请公布号
DE2119369(B2)
申请公布日期
1980.04.24
申请号
DE19712119369
申请日期
1971.04.21
申请人
HAUS, HANS, 6250 LIMBURG
发明人
HAUS, HANS, 6250 LIMBURG
分类号
G03B27/20;G03C5/08;(IPC1-7):G03B27/10
主分类号
G03B27/20
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代理人
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