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发明名称
Improvements in or relating to instructional and/or practice devices for ball games
摘要
申请公布号
GB935959(A)
申请公布日期
1963.09.04
申请号
GB19610005650
申请日期
1961.02.15
申请人
MINDEN VAUGHAN BLAKE
发明人
分类号
A63B69/36
主分类号
A63B69/36
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代理人
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