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经营范围
发明名称
Spotting projectiles
摘要
申请公布号
US2409380(A)
申请公布日期
1946.10.15
申请号
US19250017427
申请日期
1925.03.21
申请人
THE UNITED STATES OF AMERICA, AS REPRESENTED BY THE SECRETARY OF THE NAVY
发明人
NICHOLS HARRY J.
分类号
F42B12/38
主分类号
F42B12/38
代理机构
代理人
主权项
地址
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