James McLean is issued a patent for a piano.
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| Number | Title | Issue Date |
| 4815095 | Resonant laser cavity system A resonant laser cavity system (10) is provided which is divided into three sections (20, 22 and 24). Sections (20 and 24) include a pair of opposing discharge tube members each including an outer discharge tube (28) and an inner discharge tube (26). On o... | 03/21/1989 |