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发明名称
Perfectionnements aux fléchettes
摘要
申请公布号
FR922709(A)
申请公布日期
1947.06.17
申请号
FRD922709
申请日期
1946.02.23
申请人
发明人
GOWLAND JOHN PINKNEY
分类号
F42B6/00
主分类号
F42B6/00
代理机构
代理人
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