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发明名称
An improved pre-heating device for the vaporizers of oil burners
摘要
申请公布号
GB503362(A)
申请公布日期
1939.04.05
申请号
GB19380006814
申请日期
1938.03.04
申请人
JOHN ALMSTROEM;FRITHIOF EKSTRAND
发明人
分类号
F23D11/44
主分类号
F23D11/44
代理机构
代理人
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地址
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