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经营范围
发明名称
Horn and howler for marine and naval use
摘要
申请公布号
US2006021(A)
申请公布日期
1935.06.25
申请号
US19330685272
申请日期
1933.08.15
申请人
THEODOR JESSEN
发明人
JESSEN THEODOR
分类号
G10K9/10
主分类号
G10K9/10
代理机构
代理人
主权项
地址
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