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Felix Hoffmann, a German chemist, was searching for something to relieve his father's arthritis. In doing so, he "rediscovered" acetylsalicylic acid and in 1900, patented a stable process for developing it. Hence, we have aspirin.
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| Number | Title | Issue Date |
| 5822941 | Construction of suspended ceilings, walls, and partition walls A connector (50) for holding a panel (4) on a support bar (1) having laterally extending flanges (11), used in the construction of suspended ceilings, walls and partition walls. The connector includes a tongue member (52) adapted to engage a panel (4). Th... | 10/20/1998 |
