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经营范围
发明名称
Tractor wheel scraper
摘要
申请公布号
US2157253(A)
申请公布日期
1939.05.09
申请号
US19380192661
申请日期
1938.02.25
申请人
GAYLORD YETTER HARRY
发明人
YETTER HARRY GAYLORD
分类号
B60S1/68
主分类号
B60S1/68
代理机构
代理人
主权项
地址
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