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发明名称
Hay pick-up
摘要
申请公布号
US1787873(A)
申请公布日期
1931.01.06
申请号
US19290382478
申请日期
1929.07.31
申请人
MURPHY JACK O
发明人
MURPHY JACK O.
分类号
A01D87/02
主分类号
A01D87/02
代理机构
代理人
主权项
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