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经营范围
发明名称
Wheel structure
摘要
申请公布号
US2424784(A)
申请公布日期
1947.07.29
申请号
US19450597514
申请日期
1945.06.04
申请人
CHICAGO ROLLER SKATE COMPANY
发明人
JR. ROBERT R. WARE,
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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