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发明名称
Pivotable chimney cap having interiorly operating means
摘要
申请公布号
US3377939(A)
申请公布日期
1968.04.16
申请号
US19670627801
申请日期
1967.04.03
申请人
DERWARD E. SAILORS
发明人
SAILORS DERWARD E.
分类号
F23J13/08
主分类号
F23J13/08
代理机构
代理人
主权项
地址
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