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 |
| 6164814 | Watch having rotatable bezel A watch suitable for use in outdoor activities includes a casing holding the workings of the watch which includes a watch face. A clear facing for viewing the watch is held to the casing, and a bezel held rotatably to the casing carries an integral fob fo... | 12/26/2000 |
| 4236239 | Electronic timepiece comprising two different displays The small-sized electronic timepiece comprises a casing susceptible to turn ntirely on itself in a support in order to expose in a first position an analog display and in a second position a digital display. The support is constituted by a rectangular plat... | 11/25/1980 |
| 4194354 | Timer Disclosed is a timer provided with a cord so that the same may be worn as a pendant. The timer comprises two mating half housings, one of which carries a cap having a notch and secured to the adjacent housing by a screw or other suitable means. Intermedia... | 03/25/1980 |