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经营范围
发明名称
Submarine signaling apparatus
摘要
申请公布号
US2443177(A)
申请公布日期
1948.06.15
申请号
US19440524989
申请日期
1944.02.28
申请人
SUBMARINE SIGNAL COMPANY
发明人
BEECHIYN JOHN T.
分类号
B06B1/08
主分类号
B06B1/08
代理机构
代理人
主权项
地址
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