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发明名称
Combined cardcase and score recorder
摘要
申请公布号
US1898193(A)
申请公布日期
1933.02.21
申请号
US19310530258
申请日期
1931.04.15
申请人
LENNSTROM WALTER M
发明人
LENNSTROM WALTER M.
分类号
A63B71/06
主分类号
A63B71/06
代理机构
代理人
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