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发明名称
MECHANICAL SURFACE AERATOR
摘要
申请公布号
CA863173(A)
申请公布日期
1971.02.09
申请号
CAD863173
申请日期
申请人
BIRD MACHINE COMPANY
发明人
JOHN T. ROOS
分类号
主分类号
代理机构
代理人
主权项
地址
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