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经营范围
发明名称
Flat roof
摘要
申请公布号
US2191522(A)
申请公布日期
1940.02.27
申请号
US19370131122
申请日期
1937.03.16
申请人
THE CELOTEX CORPORATION
发明人
ECKERT CLARENCE R.
分类号
E04D11/00
主分类号
E04D11/00
代理机构
代理人
主权项
地址
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