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发明名称
Material spreader
摘要
申请公布号
US1760455(A)
申请公布日期
1930.05.27
申请号
US19280273509
申请日期
1928.04.28
申请人
VALKENBURG PERCY M VAN
发明人
VALKENBURG PERCY M. VAN
分类号
A01C17/00
主分类号
A01C17/00
代理机构
代理人
主权项
地址
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