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发明名称
DOOR CLOSER
摘要
申请公布号
CA644110(A)
申请公布日期
1962.07.03
申请号
CAD644110
申请日期
申请人
THE H. B. IVES COMPANY
发明人
HOBART J. HENDRICK;FRITZ C. BENSON
分类号
主分类号
代理机构
代理人
主权项
地址
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