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发明名称
Improvements in or relating to echo sounders
摘要
申请公布号
GB770234(A)
申请公布日期
1957.03.20
申请号
GB19550001466
申请日期
1955.09.19
申请人
MARCONI'S WIRELESS TELEGRAPH COMPANY LIMITED
发明人
ROLFE DENIS HUGH
分类号
F16H3/00;G01S1/72
主分类号
F16H3/00
代理机构
代理人
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地址
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