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发明名称
Walking tractor
摘要
申请公布号
US2179765(A)
申请公布日期
1939.11.14
申请号
US19380209769
申请日期
1938.05.24
申请人
THE MARION STEAM SHOVEL COMPANY
发明人
STOCK HARRY F.
分类号
B62D57/00;E02F9/04
主分类号
B62D57/00
代理机构
代理人
主权项
地址
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