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发明名称
Steering means for roller skates
摘要
申请公布号
GB661300(A)
申请公布日期
1951.11.21
申请号
GB19490009168
申请日期
1949.04.04
申请人
PAUL HENRY GERRITS
发明人
分类号
A63C17/02
主分类号
A63C17/02
代理机构
代理人
主权项
地址
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