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发明名称
Improvements in blotter devices
摘要
申请公布号
GB367155(A)
申请公布日期
1932.02.18
申请号
GB19310003344
申请日期
1931.02.02
申请人
HARCOURT CORY HANROTT
发明人
分类号
B43L17/08
主分类号
B43L17/08
代理机构
代理人
主权项
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