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发明名称
Improvements in and relating to electric resistance furnaces
摘要
申请公布号
GB511515(A)
申请公布日期
1939.08.21
申请号
GB19380005146
申请日期
1938.02.18
申请人
FRIEDRICH ESSMANN;WILHELM DELMHORST
发明人
分类号
H05B3/64
主分类号
H05B3/64
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