Citada por|
| US3943575 | 12 Abr 1974 | 16 Mar 1976 | The Kendall Company | Conformable surgical hood | | US5920909 | 5 Jul 1996 | 13 Jul 1999 | | Hair wrap | | USD334830 | 20 Nov 1989 | 20 Abr 1993 | | Fabric headcovering | | USD421518 | 25 May 1999 | 14 Mar 2000 | Bula, Inc. | Headwear | | USD558956 | 25 Ene 2006 | 8 Ene 2008 | | Heated balaclava |
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