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发明名称
Шарнирный штангодержатель
摘要
申请公布号
SU31908(A1)
申请公布日期
1933.09.30
申请号
SU19320117463
申请日期
1932.10.21
申请人
KNYAZEV G.F.
发明人
KNYAZEV G.F.
分类号
E21B19/06
主分类号
E21B19/06
代理机构
代理人
主权项
地址
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