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经营范围
发明名称
Improvements in or relating to submarine signalling apparatus
摘要
申请公布号
GB628105(A)
申请公布日期
1949.08.23
申请号
GB19450007204
申请日期
1945.03.21
申请人
SUBMARINE SIGNAL COMPANY
发明人
分类号
A23L2/78;G10K11/35
主分类号
A23L2/78
代理机构
代理人
主权项
地址
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