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发明名称
Tumbling device
摘要
申请公布号
US2370990(A)
申请公布日期
1945.03.06
申请号
US19410396603
申请日期
1941.06.04
申请人
NISSEN GEORGE P
发明人
NISSEN GEORGE P.
分类号
A63B5/11
主分类号
A63B5/11
代理机构
代理人
主权项
地址
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