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经营范围
发明名称
Bohrvorrichtung
摘要
申请公布号
DE719533(C)
申请公布日期
1942.04.11
申请号
DE1936P073893D
申请日期
1936.09.29
申请人
VICTOR PEREBASKINE;PIERRE GRAVIROWSKY;SERGE NIKITINE
发明人
分类号
E21B7/06
主分类号
E21B7/06
代理机构
代理人
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