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发明名称
DRAWING DEVICE
摘要
申请公布号
GB1242893(A)
申请公布日期
1971.08.18
申请号
GB19680041994
申请日期
1968.09.04
申请人
BAYARD JOHN BRITAIN;RICHARD ALAN FISHER
发明人
BAYARD JOHN BRITAIN
分类号
B43L13/20
主分类号
B43L13/20
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