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经营范围
发明名称
Apparatus for indicating the speed of vessels through water
摘要
申请公布号
GB699939(A)
申请公布日期
1953.11.18
申请号
GB19510025486
申请日期
1951.10.31
申请人
HANS HOPPE
发明人
分类号
G01P5/165
主分类号
G01P5/165
代理机构
代理人
主权项
地址
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