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经营范围
发明名称
Roofing and siding element
摘要
申请公布号
US2095249(A)
申请公布日期
1937.10.12
申请号
US19330675453
申请日期
1933.06.12
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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