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经营范围
发明名称
PLASTIC ZOOM LENS
摘要
申请公布号
JPH03155513(A)
申请公布日期
1991.07.03
申请号
JP19890333654
申请日期
1989.12.22
申请人
RICOH CO LTD
发明人
OZAWA TOSHIRO
分类号
G02B13/18;G02B15/16;G02B15/177
主分类号
G02B13/18
代理机构
代理人
主权项
地址
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