|
| US5159769 | 29 janv. 1991 | 3 nov. 1992 | | Materials handling device |
| US5528793 | 10 juil. 1995 | 25 juin 1996 | | Multi-purpose squeegee with deflector |
| US5906060 | 10 sept. 1997 | 25 mai 1999 | | Manually pushed snow shovel |
| US8100447 | 6 févr. 2008 | 24 janv. 2012 | | Shovel with multiple blade faces |
| USD600983 | 5 nov. 2008 | 29 sept. 2009 | | Snow shovel |
| USD656162 | 23 août 2011 | 20 mars 2012 | | Combination snow plow and shovel |