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发明名称
Improvements in or relating to course-recording apparatus
摘要
申请公布号
GB604191(A)
申请公布日期
1948.06.30
申请号
GB19440009757
申请日期
1944.05.19
申请人
HENRY JOHN FREDERICK COE
发明人
分类号
G01C21/14
主分类号
G01C21/14
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