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发明名称
양방향 추진 자전거의 탈착식 크랭크
摘要
<p>본 고안은 양방향 추진 자전거에 있어서 크랭크구조에 관한 것이다. 기존의 출원된 양방향추진 자전거에 크랭크를 양쪽에 각각 하나씩 더 부설하여 뒷좌석에 사람이 탔을 때 앞사람과 뒷사람이 같이 추진할수있도록 한 것이다.</p>
申请公布号
KR19990033136(U)
申请公布日期
1999.08.05
申请号
KR19990003718U
申请日期
1999.03.09
申请人
发明人
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主分类号
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