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发明名称
Rake structure
摘要
申请公布号
US2676451(A)
申请公布日期
1954.04.27
申请号
US19520292510
申请日期
1952.06.09
申请人
VALENTINE BENJAMIN F
发明人
VALENTINE BENJAMIN F.
分类号
A01D78/16
主分类号
A01D78/16
代理机构
代理人
主权项
地址
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