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发明名称
Improvements in and relating to heads for chimney and air shaft openings
摘要
申请公布号
GB478533(A)
申请公布日期
1938.01.20
申请号
GB19360029788
申请日期
1936.11.02
申请人
ADOLF BUEHRER;SIGMUND WINOKUR
发明人
分类号
F23L17/06
主分类号
F23L17/06
代理机构
代理人
主权项
地址
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