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经营范围
发明名称
Plant lifter
摘要
申请公布号
US1838257(A)
申请公布日期
1931.12.29
申请号
US19310529840
申请日期
1931.04.13
申请人
HETZER FRANK H
发明人
HETZER FRANK H.
分类号
A01B1/18
主分类号
A01B1/18
代理机构
代理人
主权项
地址
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