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发明名称
Regulator for beet toppers
摘要
申请公布号
US2192247(A)
申请公布日期
1940.03.05
申请号
US19330688101
申请日期
1933.09.05
申请人
URSCHEL WILLIAM E
发明人
URSCHEL WILLIAM E.
分类号
A01D23/04
主分类号
A01D23/04
代理机构
代理人
主权项
地址
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