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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 |
| D623971 | Air gauge | 09/21/2010 |
| D611373 | Air gauge | 03/09/2010 |
| 7310889 | Method and device for the three-dimensional measurement of objects Disclosed is a method for three-dimensionally measuring objects, according to which the positions of a measuring element (14) are determined by means of a locating method (e.g. optically, electromagnetically, or acoustically), the positions being relative to ... | 12/25/2007 |
| 6715342 | Pneumatic length measurement apparatus The present invention relates to an apparatus for pneumatic length measurement comprising a pre-nozzle and a measurement nozzle through which the medium used for the measurement is directed onto an impact plate, a first pressure sensor arranged in front of the pre-n... | 04/06/2004 |
| 6435006 | Method for the pneumatic measurement of lengths The invention relates to a method for measuring lengths pneumatically. According to the invention, the medium used for measuring is conducted through a front nozzle and a measuring nozzle, onto a deflection plate. The distance of the deflection plate from... | 08/20/2002 |
