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发明名称
SWEEPING MACHINES
摘要
申请公布号
CA899573(A)
申请公布日期
1972.05.09
申请号
CAD899573
申请日期
申请人
JOHN H. ERIKSSON
发明人
JOHN H. ERIKSSON
分类号
E01H1/04;E01H1/08;(IPC1-7):E01H1/04
主分类号
E01H1/04
代理机构
代理人
主权项
地址
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