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发明名称
Bulb digging machine
摘要
申请公布号
US2168966(A)
申请公布日期
1939.08.08
申请号
US19370170490
申请日期
1937.10.22
申请人
DE VRIES ABRAHAM
发明人
VRIES ABRAHAM DE
分类号
A01D17/14
主分类号
A01D17/14
代理机构
代理人
主权项
地址
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