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经营范围
发明名称
Roller skate wheel
摘要
申请公布号
US2534401(A)
申请公布日期
1950.12.19
申请号
US19460672850
申请日期
1946.05.28
申请人
BLAES BROTHERS, INC.
发明人
BLAES EDWARD G.
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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