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发明名称
Способ установки зубцов в шнеке дренажной торфяной машины
摘要
申请公布号
SU85648(A1)
申请公布日期
1949.11.30
申请号
SU19490405141
申请日期
1949.10.05
申请人
GUTSUNAEV V.K.
发明人
GUTSUNAEV V.K.
分类号
E21C49/00
主分类号
E21C49/00
代理机构
代理人
主权项
地址
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