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发明名称
Chimney construction
摘要
申请公布号
US2362833(A)
申请公布日期
1944.11.14
申请号
US19440522649
申请日期
1944.02.16
申请人
LANDWEHR FRANK G
发明人
LANDWEHR FRANK G.
分类号
E04F17/02
主分类号
E04F17/02
代理机构
代理人
主权项
地址
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