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发明名称
Improvements in and relating to apparatus for use in sweeping chimneys
摘要
申请公布号
GB674950(A)
申请公布日期
1952.07.02
申请号
GB19490007657
申请日期
1949.04.21
申请人
WILLIAM HENRY COOKE
发明人
分类号
F23J3/02
主分类号
F23J3/02
代理机构
代理人
主权项
地址
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