An apparatus (10) for rotary extraction of weeds and other vegetation by hand or by using a power driver. The apparatus includes a hollow guide tube (20) in which a shaft (16) is slidably disposed. An extraction head having a plurality of pointed rods (12) or prongs (62) is coupled to shaft (16), and...http://www.google.es/patents/US5330010?utm_source=gb-gplus-sharePatente US5330010 - Weed extraction apparatus
