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经营范围
发明名称
Metallic roofing shingle
摘要
申请公布号
US2248336(A)
申请公布日期
1941.07.08
申请号
US19400336120
申请日期
1940.05.20
申请人
ERNEST BUSSEY
发明人
BUSSEY ERNEST
分类号
E04D1/18
主分类号
E04D1/18
代理机构
代理人
主权项
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