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经营范围
发明名称
Shingle and method of manufacturing the same
摘要
申请公布号
US1980053(A)
申请公布日期
1934.11.06
申请号
US19300455842
申请日期
1930.05.26
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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