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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 |
| 7536805 | Wheeled distance measuring device A wheeled distance measuring device includes a wheel unit having a wheel and a front fork with which the wheel is rotatably connected. A pole unit is connected to the front fork and a handle is connected to a top of the pole unit. A measuring unit is connected to a ... | 05/26/2009 |
| 7414235 | Handheld locating device with a sensor for detecting motion parameters A handheld device. In particular a locating device, includes a housing (10), which is movable with a handle unit (12) over a surface of an item being examined and which has a sensor unit (16) for picking up a first motion parameter. At least one... | 08/19/2008 |
| 7210244 | Distance calculation device Provided is a distance calculating apparatus calculating a real distance from a map distance of a map path connecting a first point and a second point on a map, the apparatus including: a housing; a scale input unit into which a reduced scale is input, disposed in t... | 05/01/2007 |
| 7131216 | Distance measuring apparatus A distance measuring apparatus having a frame and a wheel rotatable relative to the frame around a first axis. The wheel has a peripheral surface that can be rolled against a surface upon which a distance measurement is to be taken. The distance measuring apparatus ... | 11/07/2006 |
| 7111412 | Wheel vehicle measuring apparatus Disclosed is a vehicle wheel measuring apparatus, comprising a push rod, a counter, a wheel, and a gear coupled mechanism, wherein the counter is disposed on top of the push rod. Through the gear coupled mechanism, the axle center of said counter and the wheel axle ... | 09/26/2006 |
| 7051444 | Measuring and marking apparatus for firewood A measuring and marking apparatus for firewood includes an upstanding tubular body having a handle, defining a channel to carry an inverted aerosol can of marking material and journaling a measuring wheel having a circumferential length equal to a desired length of ... | 05/30/2006 |
| 7040036 | Distance measuring device A distance measuring device includes a housing having a distance meter, a measuring wheel having a wheel axle rotatably engaged into the housing and coupled to the distance meter. A brake wheel is disposed on the wheel axle. A brake arm is pivotally secured in the h... | 05/09/2006 |
| 6892470 | Wheeled distance measuring device A distance measuring device having a wheel, a frame, and a distance counter on the frame. The wheel has a radius and an exposed surface that can be rolled against a surface on which a distance measurement is to be taken. The wheel is mounted upon the frame for rotat... | 05/17/2005 |
| 5749522 | Marking device with distance measuring capability A device for discharging the contents of an aerosol container onto a surface which allows an operator to determine the distance the device travels when moved relative to the surface is provided. The device includes a housing having a structure for holding... | 05/12/1998 |
| 5036598 | Distance measuring device A distance measuring device includes first and second wheels having an endless belt looped about the wheels so the belt rotates as a ground engaging wheel. A hand contacting member is attached to the belt so as to provide positive sensory input to the dev... | 08/06/1991 |
| 4989342 | Actuator for a counter on a distance measuring device A distance measuring device is provided consisting of a frame, a wheel mounted to the frame for rotation about an axis and having a peripheral surface to be rolled against a surface to be measured, a distance counter, a lever arm mounted to the counter fo... | 02/05/1991 |
| 4495813 | Jogger speedometer and odometer A jogger speedometer and odometer device adapted to travel over a surface while secured to a jogger's body, is provided and consists of a wheel rotateably connected by a shaft between the bifurcations of a forked. The wheel is mechanically connected to an... | 01/29/1985 |
| 4014103 | Measuring device A measuring device which may be employed to afford both linear and non linear dimensional information without limitation as to quantity. The device is contained in a housing of circular cross section, the housing being manually rolled between the start an... | 03/29/1977 |
