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发明名称
Diffusely reflecting surfaces and process of making same
摘要
申请公布号
US1926732(A)
申请公布日期
1933.09.12
申请号
US19290371013
申请日期
1929.06.14
申请人
NORTH HAROLD D
发明人
NORTH HAROLD D.
分类号
C03C17/10;F21V7/22
主分类号
C03C17/10
代理机构
代理人
主权项
地址
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