...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 |
| 5090463 | Process for splitting timber quarters to obtain thin cuts and machine its implementation According to this invention, this splitting process to obtain thin cuts of a determined thickness consists in simultaneously attacking the two ends of a timber quarter laying horizontally and secured at its two ends between two gripping devices (3) which ... | 02/25/1992 |