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经营范围
发明名称
Improvements in or relating to gutters
摘要
申请公布号
GB716261(A)
申请公布日期
1954.09.29
申请号
GB19520003527
申请日期
1952.02.11
申请人
DOUGLAS THOMAS WALLIS
发明人
分类号
E04D13/064
主分类号
E04D13/064
代理机构
代理人
主权项
地址
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