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发明名称
Harpoon weeder
摘要
申请公布号
US1777029(A)
申请公布日期
1930.09.30
申请号
US19280294691
申请日期
1928.07.23
申请人
CHARLES J. HEYLER
发明人
BRADFORD JOHN B.
分类号
A01B1/08
主分类号
A01B1/08
代理机构
代理人
主权项
地址
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