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发明名称
Roller skate
摘要
申请公布号
US2197519(A)
申请公布日期
1940.04.16
申请号
US19380236777
申请日期
1938.10.24
申请人
RUSSELL DEMERSE
发明人
DEMERSE RUSSELL
分类号
A63C17/06
主分类号
A63C17/06
代理机构
代理人
主权项
地址
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