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发明名称
Automatic ball return for bowling alleys
摘要
申请公布号
US2019607(A)
申请公布日期
1935.11.05
申请号
US19330675676
申请日期
1933.06.14
申请人
THE BRUNSWICK-BALKE-COLLENDER COMPANY
发明人
HEDENSKOOG ERNEST
分类号
A63D5/02
主分类号
A63D5/02
代理机构
代理人
主权项
地址
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