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发明名称
Seesaw ski-track
摘要
申请公布号
US4938148(A)
申请公布日期
1990.07.03
申请号
US19890301108
申请日期
1989.01.25
申请人
DRIESSEN, LUDOVICUS J. A.
发明人
DRIESSEN, LUDOVICUS J. A.
分类号
A63C19/10
主分类号
A63C19/10
代理机构
代理人
主权项
地址
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