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经营范围
发明名称
Automatic overhead door
摘要
申请公布号
US2568808(A)
申请公布日期
1951.09.25
申请号
US19460656494
申请日期
1946.03.22
申请人
JOHANSON KARL E
发明人
JOHANSON KARL E.
分类号
E05F15/00;E05F15/16
主分类号
E05F15/00
代理机构
代理人
主权项
地址
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