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发明名称
Roller skate
摘要
申请公布号
US3037784(A)
申请公布日期
1962.06.05
申请号
US19600070950
申请日期
1960.11.22
申请人
WILLIAMS DANIEL S
发明人
WILLIAMS DANIEL S.
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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