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经营范围
发明名称
Improved roofing and like elements
摘要
申请公布号
GB485947(A)
申请公布日期
1938.05.27
申请号
GB19360034451
申请日期
1936.12.15
申请人
LANCASTER PROCESSES INC.
发明人
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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