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发明名称
Dirt mover
摘要
申请公布号
US1811179(A)
申请公布日期
1931.06.23
申请号
US19300442517
申请日期
1930.04.08
申请人
JACK JR BUTLER
发明人
JR. BUTLER JACK,
分类号
E02F3/64
主分类号
E02F3/64
代理机构
代理人
主权项
地址
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