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经营范围
发明名称
PICTURE PROJECTOR USING THERMOCHROMIC FILM
摘要
申请公布号
JPH05100316(A)
申请公布日期
1993.04.23
申请号
JP19910260610
申请日期
1991.10.08
申请人
RICOH CO LTD
发明人
KITANO KAZUHIKO
分类号
G03B21/132
主分类号
G03B21/132
代理机构
代理人
主权项
地址
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