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发明名称
A new or improved erasing device
摘要
申请公布号
GB747046(A)
申请公布日期
1956.03.28
申请号
GB19540005617
申请日期
1954.02.25
申请人
OFREX LIMITED
发明人
DONKIN WILLIAM HARRY
分类号
B43L19/00
主分类号
B43L19/00
代理机构
代理人
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