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经营范围
发明名称
Asbestos-cement tile or sheet
摘要
申请公布号
GB506222(A)
申请公布日期
1939.05.24
申请号
GB19380014595
申请日期
1938.05.16
申请人
WILLIAM FREDERICK GIBSON
发明人
分类号
E04C2/32
主分类号
E04C2/32
代理机构
代理人
主权项
地址
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