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发明名称
MAGNETIC UNLOADER AND METHOD
摘要
申请公布号
CA648692(A)
申请公布日期
1962.09.18
申请号
CAD648692
申请日期
申请人
INDIANA GENERAL CORPORATION
发明人
EDWIN HALL
分类号
主分类号
代理机构
代理人
主权项
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