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发明名称
VORRICHTUNG EINER ZAHL PROJEKTIONSHALTER FUER DIAPOSITIVE UND ZUSAETZLICHE BILDTRAEGER
摘要
申请公布号
DE3501471(A1)
申请公布日期
1985.08.01
申请号
DE19853501471
申请日期
1985.01.18
申请人
G.D.I. PVBA
发明人
DER WOUDEN,ADRIAAN VAN
分类号
G03B21/64;(IPC1-7):G03B21/64
主分类号
G03B21/64
代理机构
代理人
主权项
地址
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