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经营范围
发明名称
Upper securing device for tension screens
摘要
申请公布号
US2599725(A)
申请公布日期
1952.06.10
申请号
US19510231016
申请日期
1951.06.11
申请人
RY-LOCK COMPANY, LTD.
发明人
RUST DAVID JORDAN;JENSEN JACK H.
分类号
E06B9/52
主分类号
E06B9/52
代理机构
代理人
主权项
地址
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