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发明名称
VORRICHTUNG ZUR HERSTELLUNG LAENGSGESCHWEISSTER STAHLROHRE, INSBESONDERE LICHTMASTEN
摘要
申请公布号
DE2503025(B2)
申请公布日期
1977.03.31
申请号
DE19752503025
申请日期
1975.01.25
申请人
发明人
分类号
B21C37/08;(IPC1-7):B21C37/08
主分类号
B21C37/08
代理机构
代理人
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地址
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