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经营范围
发明名称
Liquid composition for erasing indian ink from tracing papers and tracing cloths
摘要
申请公布号
GB487618(A)
申请公布日期
1938.06.23
申请号
GB19370006147
申请日期
1937.03.02
申请人
WALTER SIMPKIN
发明人
分类号
C11D3/43
主分类号
C11D3/43
代理机构
代理人
主权项
地址
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