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发明名称
RETROPROJETOR PORTATIL
摘要
申请公布号
BR6900871(U)
申请公布日期
1991.04.09
申请号
BR1989MU00871U
申请日期
1989.06.06
申请人
BRASIL RAVAGLIO FILHO
发明人
BRASIL RAVAGLIO FILHO
分类号
G03B21/08;(IPC1-7):G03B21/08
主分类号
G03B21/08
代理机构
代理人
主权项
地址
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