A hybrid electric lawnmower having dual power supply is described which includes an electric motor operating the blade and the ability to drive the motor from either 120 VAC line voltage or from a battery pack. There is a user selectable power selection switch for switching between DC or AC power in...http://www.google.fr/patents/US20080089674?utm_source=gb-gplus-shareBrevet US20080089674 - Hybrid Electric Lawnmower Having Dual Power Supply
Hybrid Electric Lawnmower Having Dual Power Supply
Numéro de demande: 11/550,476 Numéro de publication: US 2008/0089674 A1 Date de dépôt: 18 oct. 2006 Brevet délivré: US7482768 ( Date de délivrance 27 janv. 2009)
