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经营范围
发明名称
Automatic hurdle
摘要
申请公布号
US2119808(A)
申请公布日期
1938.06.07
申请号
US19370164937
申请日期
1937.09.21
申请人
FECHT JOHN B
发明人
FECHT JOHN B.
分类号
A63K3/04
主分类号
A63K3/04
代理机构
代理人
主权项
地址
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