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经营范围
发明名称
Roof construction
摘要
申请公布号
GB729096(A)
申请公布日期
1955.05.04
申请号
GB19530008121
申请日期
1953.03.24
申请人
CHARLES LYMAN ELLIS, JR.;LAURENCE CARL HULL
发明人
分类号
E04B7/08
主分类号
E04B7/08
代理机构
代理人
主权项
地址
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