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发明名称
PROJECTION LENS AND PROJECTION TYPE DISPLAY DEVICE USING THE SAME
摘要
申请公布号
JPH04366803(A)
申请公布日期
1992.12.18
申请号
JP19910167469
申请日期
1991.06.13
申请人
HITACHI LTD
发明人
OSAWA ATSUO;HIRATA KOJI;NUMATA TORU
分类号
G02B13/16;G02B13/18
主分类号
G02B13/16
代理机构
代理人
主权项
地址
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