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经营范围
发明名称
Excavating machine
摘要
申请公布号
US2139254(A)
申请公布日期
1938.12.06
申请号
US19370147530
申请日期
1937.06.10
申请人
THE MARION STEAM SHOVEL COMPANY
发明人
BIXBY KENNETH R.
分类号
E02F3/30;E02F3/42
主分类号
E02F3/30
代理机构
代理人
主权项
地址
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