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发明名称
Roller skate
摘要
申请公布号
US2276570(A)
申请公布日期
1942.03.17
申请号
US19400345635
申请日期
1940.07.15
申请人
GAINES CHARLES N
发明人
GAINES CHARLES N.
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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