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发明名称
SPORT TIMING APPARATUS
摘要
申请公布号
CA377208(A)
申请公布日期
1938.10.18
申请号
CAD377208
申请日期
申请人
THE WESTERN UNION TELEGRAPH COMPANY
发明人
ROBERT STEENECK;ROY BARTON WHITE;ROBERT FREDERICK DIRKES
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主分类号
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