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经营范围
发明名称
Distress signal
摘要
申请公布号
GB556796(A)
申请公布日期
1943.10.21
申请号
GB19430000863
申请日期
1943.01.18
申请人
ABRAHAM HARGREAVES
发明人
分类号
B63B51/04;F21S8/00
主分类号
B63B51/04
代理机构
代理人
主权项
地址
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