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发明名称
Perfectionnements aux réflecteurs de lumière
摘要
申请公布号
FR952479(A)
申请公布日期
1949.11.17
申请号
FRD952479
申请日期
1947.08.26
申请人
MINNESOTA MINING AND MANUFACTURING COMPANY
发明人
分类号
G02B5/128
主分类号
G02B5/128
代理机构
代理人
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