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发明名称
Hydraulically controlled apron and ejector assembly for earth working scrapers
摘要
申请公布号
US2609622(A)
申请公布日期
1952.09.09
申请号
US19500199975
申请日期
1950.12.09
申请人
MURRAY DONALD E
发明人
MURRAY DONALD E.
分类号
E02F3/64
主分类号
E02F3/64
代理机构
代理人
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