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发明名称
MAGNETIC RETRACTABLE DOOR ROLLER FOR AUTOMATIC ELEVATORS
摘要
申请公布号
CA680656(A)
申请公布日期
1964.02.25
申请号
CAD680656
申请日期
申请人
GEORGE OLEXSON;PETER FINN
发明人
GEORGE OLEXSON;PETER FINN
分类号
主分类号
代理机构
代理人
主权项
地址
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