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发明名称
Silo unloader having wall cleaning means
摘要
申请公布号
US2888253(A)
申请公布日期
1959.05.26
申请号
US19530363750
申请日期
1953.06.24
申请人
VAN DALE, INC.
发明人
DUSEN FREDERICK E. VAN
分类号
A01F25/20
主分类号
A01F25/20
代理机构
代理人
主权项
地址
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