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经营范围
发明名称
Sheet metal roofing material
摘要
申请公布号
US2369487(A)
申请公布日期
1945.02.13
申请号
US19430508899
申请日期
1943.11.04
申请人
CECO STEEL PRODUCTS CORPORATION
发明人
OCHILTREE NED A.
分类号
E04D3/30;E04D5/04
主分类号
E04D3/30
代理机构
代理人
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