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发明名称
Improvements in or relating to drawing board units
摘要
申请公布号
GB998339(A)
申请公布日期
1965.07.14
申请号
GB19630014266
申请日期
1963.04.10
申请人
DARGUE BROTHERS LIMITED
发明人
DARGUE ERIC LEWIN
分类号
A47B85/02
主分类号
A47B85/02
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代理人
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