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发明名称
APPARATUS FOR WELDING INNER ANNULAR SEAMS
摘要
申请公布号
SU759275(A1)
申请公布日期
1980.08.30
申请号
SU19782634464
申请日期
1978.06.28
申请人
ZELENIN VLADIMIR A,SU;YAVNO EDUARD ,SU
发明人
ZELENIN VLADIMIR A,SU;YAVNO EDUARD ,SU
分类号
B23K37/02;(IPC1-7):B23K31/06
主分类号
B23K37/02
代理机构
代理人
主权项
地址
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