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专利名称：AUTOMATIC TRACING DEVICE发明人：ARATANI TAKESHI,UDAGAWA
TSUGIO,KITSUI AKIO
申请号：JP10122375申请日：19750822公开号：JPS5226087A公开日：19770226
摘要：PURPOSE:To provide a device for continuing welding work by evacuatingautomatically a tracing sensor in a device which welds, tracing automatically a weld linewhen there is an obstacle on the weld line.
申请人：HITACHI LTD
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