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经营范围
发明名称
Overhead garage door and operating means
摘要
申请公布号
US2544952(A)
申请公布日期
1951.03.13
申请号
US19490084059
申请日期
1949.03.29
申请人
DEURING WILLIAM G
发明人
DEURING WILLIAM G.
分类号
E05D15/42
主分类号
E05D15/42
代理机构
代理人
主权项
地址
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