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| US5724677 | 8 mars 1996 | 10 mars 1998 | Minnesota Mining and Manufacturing Company | Multi-part headband and respirator mask assembly and process for making same |
| US5819731 | 3 janv. 1997 | 13 oct. 1998 | Minnesota Mining and Manufacturing Company | Face mask having a combination adjustable ear loop and drop down band |
| US6070579 | 8 mars 1996 | 6 juin 2000 | 3M Innovative Properties Company | Elastomeric composite headband |
| US6095143 | 12 oct. 1998 | 1 août 2000 | Minnesota Mining and Manufacturing Company | Face mask having a combination adjustable ear loop and drop down band |
| US6148817 | 23 janv. 1998 | 21 nov. 2000 | 3M Innovative Properties Company | Multi-part headband and respirator mask assembly and process for making same |
| US6928657 | 25 oct. 2002 | 16 août 2005 | Kimberly-Clark Worldwide, Inc. | Face mask having hook and loop type fastener |
| US7032751 | 19 déc. 2002 | 25 avr. 2006 | Kimberly-Clark Worldwide, Inc. | Dispensing assembly for single piece face mask |