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发明名称
Dispositif régulateur de profondeur de labour pour charrue portée
摘要
申请公布号
FR1071447(A)
申请公布日期
1954.08.31
申请号
FRD1071447
申请日期
1953.02.25
申请人
发明人
DEMON ARTHUR
分类号
A01B63/16
主分类号
A01B63/16
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