ROW CROP HARROW ATTACHMENT DEVICE

申请公布号：US3539019(A)

申请号：USD3539019

申请日期：1968.07.22

申请公布日期：1970.11.10

申请人：

ELVIN MATTSON;ALLEN D. MATTSON

发明人：ELVIN MATTSON;ALLEN D. MATTSON

分类号：A01B39/04;(IPC1-7):A01B17/00;A01B23/00;A01B39/22

主分类号：A01B39/04

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