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经营范围
发明名称
Eaves trough hanger
摘要
申请公布号
US2550780(A)
申请公布日期
1951.05.01
申请号
US19500142170
申请日期
1950.02.03
申请人
AARON COHN
发明人
COHN AARON
分类号
E04D13/072
主分类号
E04D13/072
代理机构
代理人
主权项
地址
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