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发明名称
Roller skate
摘要
申请公布号
US2595751(A)
申请公布日期
1952.05.06
申请号
US19490091696
申请日期
1949.05.06
申请人
EDWARD BALSTAD
发明人
BALSTAD EDWARD
分类号
A63C17/22
主分类号
A63C17/22
代理机构
代理人
主权项
地址
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