00316naa a2200109 a 450000100080000000500110000800800410001910000190006024500560007926000090013577300620014418370222010-01-10       1966    bl ---       0--  u    #d1 aGARRETT, R. E.  aDevice designed for synchronous thinning of plants.  c1966  tAgricultural Engineeringgv. 47, n. 12, p. 652-653, 1966.