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发明名称
Ground brake for roller skates
摘要
申请公布号
US2566747(A)
申请公布日期
1951.09.04
申请号
US19480010492
申请日期
1948.02.24
申请人
RICE LEO H
发明人
RICE LEO H.
分类号
A63C17/14
主分类号
A63C17/14
代理机构
代理人
主权项
地址
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