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发明名称
Самозатачивающийся резец для резания горных пород
摘要
申请公布号
SU83728(A1)
申请公布日期
1949.11.30
申请号
SU19490396786
申请日期
1949.05.09
申请人
CHERKASOV N.E.
发明人
CHERKASOV N.E.
分类号
E21C35/18
主分类号
E21C35/18
代理机构
代理人
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地址
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