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发明名称
METHOD OF MANUFACTURING AN ELECTRICAL HEATING ELEMENT ENCLOSED WITH A TUBULAR METAL JACKET
摘要
申请公布号
PL152430(B1)
申请公布日期
1990.12.31
申请号
PL19870266888
申请日期
1987.07.17
申请人
发明人
分类号
H05B;H05B3/52;(IPC1-7):H05B3/52
主分类号
H05B
代理机构
代理人
主权项
地址
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