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发明名称
Projectile
摘要
申请公布号
US2253021(A)
申请公布日期
1941.08.19
申请号
US19390284748
申请日期
1939.07.15
申请人
DUNN WILLIAM H
发明人
DUNN WILLIAM H.
分类号
F42B12/20;F42C9/06
主分类号
F42B12/20
代理机构
代理人
主权项
地址
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