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经营范围
发明名称
Springboard
摘要
申请公布号
US3408069(A)
申请公布日期
1968.10.29
申请号
US19640401374
申请日期
1964.10.05
申请人
JACK R. LEWIS
发明人
LEWIS JACK R.
分类号
A63B5/10
主分类号
A63B5/10
代理机构
代理人
主权项
地址
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