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发明名称
PORTABLE PROJECTOR
摘要
申请公布号
JPH04298731(A)
申请公布日期
1992.10.22
申请号
JP19900404612
申请日期
1990.12.03
申请人
SONY CORP
发明人
ITO HIROAKI
分类号
G03B21/30;H04N5/74
主分类号
G03B21/30
代理机构
代理人
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