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发明名称
Skate wheel structure
摘要
申请公布号
US2467437(A)
申请公布日期
1949.04.19
申请号
US19460686551
申请日期
1946.07.26
申请人
NORMA-HOFFMANN BEARINGS CORPORATION
发明人
MARTINEC EUGENE F.
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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