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经营范围
发明名称
Roofing shingle and method of making same
摘要
申请公布号
US1807918(A)
申请公布日期
1931.06.02
申请号
US19280320682
申请日期
1928.11.20
申请人
THE PATENT AND LICENSING CORPORATION
发明人
KIRSCHBRAUN LESTER;HEPPES OTTO A.
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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