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发明名称
Trainer wheel support for bicycles
摘要
申请公布号
US2828141(A)
申请公布日期
1958.03.25
申请号
US19560585747
申请日期
1956.05.18
申请人
AMERICAN MACHINE & FOUNDRY COMPANY
发明人
ERSTAD TENNES I.;ROADMAN WILLIAM GAROLD
分类号
B62H1/12;B62H7/00
主分类号
B62H1/12
代理机构
代理人
主权项
地址
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