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发明名称
METHOD OF PRODUCING ELECTRICALLY WELDED LONGITUDINAL TUBES
摘要
申请公布号
SU1613213(A2)
申请公布日期
1990.12.15
申请号
SU19894631610
申请日期
1989.01.05
申请人
VNI PK T I KABELNOJ PROMY;GNI, üPOEKTHÕö ô KOHCTPÔKTOPCKôö ôHCTôTÔT CüóABOB ô O¬PA¬OTKô |BETHÕX METAóóOB "×ôüPO|BETMETO¬PA¬OTKA"
发明人
SVIDOVSKIJ FELIKS G,SU;PANYUSHKIN LEV S,SU;DOZORTSEV YULIJ K,SU
分类号
B21C37/08
主分类号
B21C37/08
代理机构
代理人
主权项
地址
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