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发明名称
Invalid lifter
摘要
申请公布号
US1878785(A)
申请公布日期
1932.09.20
申请号
US19300452662
申请日期
1930.05.15
申请人
LEAVITT BYRON C
发明人
LEAVITT BYRON C.
分类号
A61G7/10
主分类号
A61G7/10
代理机构
代理人
主权项
地址
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