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发明名称
REFLECTOR USING FRESNEL-TYPE STRUCTURES HAVING A PLURALITY OF ACTIVE FACES
摘要
申请公布号
KR0147828(B1)
申请公布日期
1998.10.01
申请号
KR19890006163
申请日期
1989.05.09
申请人
MINNESOTA MINING AND MANUFACTURING CO.
发明人
COBB JR., SANFORD;MILLER, RICHARD A.
分类号
F21V7/00;F21V7/04;F21V7/09;(IPC1-7):F21V7/09
主分类号
F21V7/00
代理机构
代理人
主权项
地址
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