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发明名称
COLOUR FASTNESS TESTING APPARATUS
摘要
申请公布号
CA333966(A)
申请公布日期
1933.07.11
申请号
CAD333966
申请日期
申请人
THE ONTARIO RESEARCH FOUNDATION
发明人
ROBERT OSWALD HALL
分类号
主分类号
代理机构
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