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发明名称
HEISSLUFTHERD, IN DESSEN DOPPELDECKE EIN ZUM SCHORNSTEIN FUEHRENDER, DURCH ZWEI STEHENDE LEITBLECHE GEBILDETER RAUCHGASKANAL LIEGT.
摘要
申请公布号
DE1692921(U)
申请公布日期
1955.02.10
申请号
DE195400L2096U
申请日期
1954.12.06
申请人
RICHARD LAASS
发明人
RICHARD LAASS
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主分类号
代理机构
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