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经营范围
发明名称
GROUND WORKING IMPLEMENTS
摘要
申请公布号
US3534819(A)
申请公布日期
1970.10.20
申请号
USD3534819
申请日期
1968.08.23
申请人
HOWARD E. GROVER
发明人
HOWARD E. GROVER
分类号
A01B23/04;A01B63/22;A01B73/04;(IPC1-7):A01B63/22
主分类号
A01B23/04
代理机构
代理人
主权项
地址
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