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经营范围
发明名称
Garden cultivator
摘要
申请公布号
US2268252(A)
申请公布日期
1941.12.30
申请号
US19400329352
申请日期
1940.04.12
申请人
HELMERS HENRY H
发明人
HELMERS HENRY H.
分类号
A01B1/22
主分类号
A01B1/22
代理机构
代理人
主权项
地址
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