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发明名称
Hay tool
摘要
申请公布号
US2623772(A)
申请公布日期
1952.12.30
申请号
US19500194679
申请日期
1950.11.08
申请人
JOHNSON ARDELL W
发明人
JOHNSON ARDELL W.
分类号
A01D11/00
主分类号
A01D11/00
代理机构
代理人
主权项
地址
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