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发明名称
Electronic scorer
摘要
申请公布号
US3137949(A)
申请公布日期
1964.06.23
申请号
US19620182297
申请日期
1962.03.26
申请人
SMITH CARL D
发明人
SMITH CARL D.
分类号
G09B7/06
主分类号
G09B7/06
代理机构
代理人
主权项
地址
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