...that "patent leather" got its name because the process of applying the polished black finish to leather was once patented?
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| Number | Title | Issue Date |
| 6397399 | Protective headguard A protective headguard including (i) a protective central pad for covering at least a portion of an athlete's forehead, (ii) a rear pad for covering at least a portion of an athlete's occipital bone, (iii) a sleeve interconnecting the central pad and the ... | 06/04/2002 |
| 6349416 | Headguard-protective sports headband Protective headguard to be worn by an athlete having (i) a protective central pad, (ii) a rear pad, (iii) an adjustable strap system interconnecting the rear pad and the central pad, and (iv) one or more of (a) a lack of any protective padding which would... | 02/26/2002 |