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发明名称
Ramme til udskiftelige diapositiver.
摘要
申请公布号
DK121932(B)
申请公布日期
1971.12.20
申请号
DK19670000734
申请日期
1967.02.10
申请人
HANS-JUERGEN PHILIPP, TEKNIKER
发明人
HANS-JUERGEN PHILIPP, TEKNIKER
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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