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经营范围
发明名称
DIE FOR MAKING PARTS OF PIPELINES
摘要
申请公布号
SU691222(A1)
申请公布日期
1979.10.15
申请号
SU19772517424
申请日期
1977.08.18
申请人
VNI PI TEKHNOLOGII KHIM NEFTYANOGO APPARATOSTROENIYA
发明人
BEREZIN IGOR V,SU;PAVLOV YURIJ K,SU
分类号
B21C37/28;(IPC1-7):B21C37/28
主分类号
B21C37/28
代理机构
代理人
主权项
地址
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