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经营范围
发明名称
Boy's bicycle frame and seat post cluster construction
摘要
申请公布号
US2855218(A)
申请公布日期
1958.10.07
申请号
US19570666884
申请日期
1957.06.20
申请人
发明人
分类号
B62K3/04
主分类号
B62K3/04
代理机构
代理人
主权项
地址
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