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发明名称
Digging device
摘要
申请公布号
US2798314(A)
申请公布日期
1957.07.09
申请号
US19550542303
申请日期
1955.10.24
申请人
BRITE EARL H
发明人
BRITE EARL H.
分类号
E02F3/18;E02F3/20;E02F5/02;E02F5/08
主分类号
E02F3/18
代理机构
代理人
主权项
地址
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