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发明名称
Exercising device
摘要
申请公布号
US2470544(A)
申请公布日期
1949.05.17
申请号
US19480050983
申请日期
1948.09.24
申请人
BELL JOSEPH D
发明人
BELL JOSEPH D.
分类号
A63B21/068
主分类号
A63B21/068
代理机构
代理人
主权项
地址
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