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经营范围
发明名称
Excavating machine
摘要
申请公布号
US1889590(A)
申请公布日期
1932.11.29
申请号
US19290395537
申请日期
1929.09.27
申请人
THE BYERS MACHINE COMPANY
发明人
BECKWITH HENRY C.
分类号
E02F3/30;E02F3/32;E02F3/42
主分类号
E02F3/30
代理机构
代理人
主权项
地址
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