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经营范围
发明名称
Rotary scraper
摘要
申请公布号
US1985188(A)
申请公布日期
1934.12.18
申请号
US19330682022
申请日期
1933.07.24
申请人
MILLER JULIUS H
发明人
MILLER JULIUS H.
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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