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经营范围
发明名称
Improvements in or relating to shingle elements
摘要
申请公布号
GB461655(A)
申请公布日期
1937.02.22
申请号
GB19350023615
申请日期
1935.08.22
申请人
BAKELITE BUILDING PRODUCTS COMPANY INC.
发明人
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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