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经营范围
发明名称
Plow lift
摘要
申请公布号
US2221935(A)
申请公布日期
1940.11.19
申请号
US19380245319
申请日期
1938.12.12
申请人
RALPH HUMBERT
发明人
HUMBERT WILBUR E.
分类号
A01B63/02
主分类号
A01B63/02
代理机构
代理人
主权项
地址
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