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发明名称
MAGNETICALLY DAMPED DOOR CLOSER
摘要
申请公布号
CA542823(A)
申请公布日期
1957.06.25
申请号
CAD542823
申请日期
申请人
SCHLAGE LOCK COMPANY
发明人
ARTHUR SCHARF;ROBERT M. CONKLIN
分类号
主分类号
代理机构
代理人
主权项
地址
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