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发明名称
DIAPOSITIV-RAHMEN
摘要
申请公布号
DE7222388(U)
申请公布日期
1972.09.21
申请号
DE19720022388U
申请日期
1972.06.15
申请人
GONZALEZ P
发明人
分类号
G03B21/64;G03C
主分类号
G03B21/64
代理机构
代理人
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