|
| US4332331 | 3 juin 1980 | 1 juin 1982 | | Rotatable valve protector for compressed gas cylinder |
| US4478345 | 27 juin 1983 | 23 oct. 1984 | | Self-contained containment for gas cylinder |
| US4549568 | 23 févr. 1984 | 29 oct. 1985 | | Valve enclosure |
| US5004117 | 25 sept. 1989 | 2 avr. 1991 | | Safety cylinder cap |
| US7195031 | 3 mars 2005 | 27 mars 2007 | Irwin Industrial Tool Company | Storage system and protective device for tanks |
| US7373947 | 3 mars 2005 | 20 mai 2008 | Irwin Industrial Tool Company | Storage system and protective device for tanks |
| US7415988 | 3 mars 2005 | 26 août 2008 | Irwin Industrial Tool Company | Storage system and protective device for tanks |
| US7703821 | 30 nov. 2005 | 27 avr. 2010 | Praxair Technology, Inc. | Ergonomic shroud for medical gas cylinders |
| USD319286 | 15 août 1988 | 20 août 1991 | Hoover Group, Inc. | Corrugated valve guard |
| USD334967 | 27 juil. 1989 | 20 avr. 1993 | | Safety cap for gas cylinders |
