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发明名称
An improved dart
摘要
申请公布号
GB684037(A)
申请公布日期
1952.12.10
申请号
GB19500008343
申请日期
1950.04.03
申请人
MILLARD BROTHERS LIMITED;JAMES WHALE MCCALLUM
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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