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经营范围
发明名称
Improvements in and relating to darts
摘要
申请公布号
GB594574(A)
申请公布日期
1947.11.14
申请号
GB19380028209
申请日期
1938.09.28
申请人
ALPHONSUS JOSEPH BULL
发明人
分类号
F42B6/00
主分类号
F42B6/00
代理机构
代理人
主权项
地址
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