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发明名称
Roof construction
摘要
申请公布号
US1990838(A)
申请公布日期
1935.02.12
申请号
US19300464880
申请日期
1930.06.30
申请人
FEGLES CONSTRUCTION COMPANY, LIMITED
发明人
NEMEC FRANK L.
分类号
E04B7/14
主分类号
E04B7/14
代理机构
代理人
主权项
地址
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