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经营范围
发明名称
Improvements in and connected with apparatus for indicating the speed and direction of movement of engines or machines
摘要
申请公布号
GB395444(A)
申请公布日期
1933.07.20
申请号
GB19320005888
申请日期
1932.02.27
申请人
CHADBURN'S (SHIP) TELEGRAPH COMPANY LIMITED;ALFRED CHADBURN BAMFORD
发明人
分类号
G08B9/00
主分类号
G08B9/00
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代理人
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