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经营范围
发明名称
SAMENKLAPBARE OVERHEADPROJECTOR.
摘要
申请公布号
NL8601972(A)
申请公布日期
1987.02.16
申请号
NL19860001972
申请日期
1986.07.31
申请人
RICOH COMPANY, LTD. TE TOKIO, JAPAN.
发明人
分类号
G03B21/132;G03B21/30;(IPC1-7):G03B21/132;G03B21/08
主分类号
G03B21/132
代理机构
代理人
主权项
地址
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