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发明名称
Combined carrier scraper
摘要
申请公布号
US2099435(A)
申请公布日期
1937.11.16
申请号
US19350014253
申请日期
1935.04.02
申请人
DAVENPORT RALPH M
发明人
DAVENPORT RALPH M.
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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