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发明名称
Seesaw
摘要
申请公布号
US1978264(A)
申请公布日期
1934.10.23
申请号
US19320644385
申请日期
1932.11.25
申请人
HARRY H. NEWTON
发明人
HUSTED HARRY F.
分类号
A63G11/00
主分类号
A63G11/00
代理机构
代理人
主权项
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