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经营范围
发明名称
Roofing and siding material
摘要
申请公布号
US2112194(A)
申请公布日期
1938.03.22
申请号
US19350019019
申请日期
1935.04.30
申请人
BAKELITE BUILDING PRODUCTS CO., INC.
发明人
HARSHBERGER NORMAN P.
分类号
E04D1/26
主分类号
E04D1/26
代理机构
代理人
主权项
地址
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