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经营范围
发明名称
Rockdrilling device
摘要
申请公布号
US3332502(A)
申请公布日期
1967.07.25
申请号
US19650428662
申请日期
1965.01.28
申请人
KHARKOVSKY INSTITUTE GORNOGO MASHINOSTROENIA AVTOMATIKI I VYCHISLITELNOI TEKHNIKI
发明人
VINNIK IGOR VLADIMIROVICH
分类号
B25D9/12;E21B6/00
主分类号
B25D9/12
代理机构
代理人
主权项
地址
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