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发明名称
Проходческий копер
摘要
申请公布号
SU94452(A1)
申请公布日期
1952.11.30
申请号
SU19520444956
申请日期
1952.02.18
申请人
OVCHINNIKOV N.F.
发明人
OVCHINNIKOV N.F.
分类号
E04H12/26
主分类号
E04H12/26
代理机构
代理人
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地址
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