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发明名称
Шарошка бурового долота
摘要
申请公布号
SU108836(A1)
申请公布日期
1956.11.30
申请号
SU19560575149
申请日期
1956.01.20
申请人
VLADISLAVLEV YU.E.;ILSKIJ A.L.;MATVEEV G.I.;TRAVKIN V.S.;FEDOTOV G.I.
发明人
VLADISLAVLEV YU.E.;ILSKIJ A.L.;MATVEEV G.I.;TRAVKIN V.S.;FEDOTOV G.I.
分类号
E21B10/22
主分类号
E21B10/22
代理机构
代理人
主权项
地址
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