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经营范围
发明名称
Device for flues, chimneys, and the like
摘要
申请公布号
US2181232(A)
申请公布日期
1939.11.28
申请号
US19380195654
申请日期
1938.03.12
申请人
JOHANNES HAAG
发明人
HAAG JOHANNES
分类号
F24B1/192
主分类号
F24B1/192
代理机构
代理人
主权项
地址
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