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| US4067609 | 22 nov. 1976 | 10 janv. 1978 | Johnson & Johnson | Headrest cover fastening device |
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| US5962102 | 26 nov. 1997 | 5 oct. 1999 | 3M Innovative Properties Company | Loop material for engagement with hooking stems |
| US5981027 | 26 nov. 1996 | 9 nov. 1999 | Velcro Industries B.V. | Fastening member with loops and process and machine for producing it |
