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发明名称
Submarine signal device
摘要
申请公布号
US2404799(A)
申请公布日期
1946.07.30
申请号
US19420449604
申请日期
1942.07.03
申请人
BELL TELEPHONE LABORATORIES, INCORPORATED
发明人
HARRY WILLIAM R.;ROMANOW FRANK F.
分类号
G10K11/00
主分类号
G10K11/00
代理机构
代理人
主权项
地址
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