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经营范围
发明名称
Variable speed torpedo
摘要
申请公布号
US2042987(A)
申请公布日期
1936.06.02
申请号
US19290353005
申请日期
1929.04.06
申请人
发明人
JR. JOHN HAYS HAMMOND,
分类号
F41G7/00;F42B19/10
主分类号
F41G7/00
代理机构
代理人
主权项
地址
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