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发明名称
ROLLER SKATE WHEEL
摘要
申请公布号
CA377460(A)
申请公布日期
1938.11.01
申请号
CAD377460
申请日期
申请人
HERBERT T. AUERBACH
发明人
EDWARD A. GRANGE;ERWIN J. SCHMIDT
分类号
主分类号
代理机构
代理人
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