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发明名称
Earth scraper
摘要
申请公布号
US3221423(A)
申请公布日期
1965.12.07
申请号
US19630261708
申请日期
1963.02.28
申请人
DANIELS GORDON E
发明人
DANIELS GORDON E.
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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