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经营范围
发明名称
Roofing element
摘要
申请公布号
US2037268(A)
申请公布日期
1936.04.14
申请号
US19310506425
申请日期
1931.01.03
申请人
THE BARRETT COMPANY
发明人
REEVE CHARLES S.
分类号
E04D1/22
主分类号
E04D1/22
代理机构
代理人
主权项
地址
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