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发明名称
Shingle roof and material relating thereto
摘要
申请公布号
US2044781(A)
申请公布日期
1936.06.23
申请号
US19330665861
申请日期
1933.04.13
申请人
BAKELITE BUILDING PRODUCTS CO., INC.
发明人
HARSHBERGER NORMAN P.
分类号
E04D1/28
主分类号
E04D1/28
代理机构
代理人
主权项
地址
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