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发明名称
Diaprojektor
摘要
申请公布号
DE1797246(A1)
申请公布日期
1971.08.05
申请号
DE19681797246
申请日期
1968.09.04
申请人
JOSEF WEBER,ELEKTRO-FEINBAU
发明人
WEBER,JOSEF
分类号
G03B21/00;G03D15/10
主分类号
G03B21/00
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代理人
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