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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 |
| 8033858 | Lamp holder with a fixing element fixed to a contact plate on one side of an insulating base and to a wiring element on other side of the base A lamp holder includes a contact plate having an end in a curved shape, and the other end fixed onto a side of an insulating base by an end of a first fixing element, such that a predetermined distance is formed between the end of the contact plate and the insulatin... | 10/11/2011 |
| 7755465 | Temperature control switch A temperature control switch comprises a switch casing, which contains a springy slice, where the springy slice is provided with a thermostatic bimetal strip on its bouncing end. The thermostatic bimetal strip is provided with an electric heating device, where the f... | 07/13/2010 |
| 7654854 | Push-cord energy saving lampholder easy for the stripping of cord The present invention is to provide a push-cord energy saving lamp holder that is easy for the stripping of power cord, which comprises: a lamp holder body, having push-cord holes and nearby cord-stripped sockets at its top, and first lodging troughs and second lodg... | 02/02/2010 |
| 7607934 | Instant insertion and extractable wire connector This invention is to provide an instant insertion and extractable wire connector, comprising a shell, a clip, at least two wire extracting chunks, an insert and a cover. One side of the clip is extended to form at least two separated curved segments, and an arc is l... | 10/27/2009 |
| 7491077 | Switch lampholder The invention is to provide a switch lamp holder, which comprises: a core, having a switch control element stretched from its lateral and a set of penetrating orifices which are residing at the oblique areas of the core, and joining a hollow chamber at its one end; ... | 02/17/2009 |
| 7403406 | Electronic current limiter An electronic current limiter includes a power supply transformation circuit to transform an alternating-current power supply into a direct-current power supply, a current detection circuit to sense and detect a current from the input terminals of the power supply t... | 07/22/2008 |
| 7384163 | Rotation knob type light-regulating lamp socket A lamp socket includes a first shell, a second shell combined with the first shell, a separation plate rested on a bottom of the first shell and the second shell, a base secured to the separation plate, an electronic unit mounted in the first shell and electrically ... | 06/10/2008 |
| 7232972 | Line switch able to modulate light A line switch able to modulate light includes an upper cover, a lower cover and a rotary selector positioned between the upper and the lower cover. When the rotary selector is turned clockwise, the line switch can turn on and modulate light to be half bright, and wh... | 06/19/2007 |
| 7097508 | Compact fluorescent lampholder A compact fluorescent lampholder includes a fundamental base and a holder body combined together. The fundamental base is provided with a female thread post inside. Electric current is transmitted to two conducting members beside the female threaded post. The holder... | 08/29/2006 |
| 7077706 | Cover for terminal screws of a receptacle A cover for terminal screws of a receptacle, which has plug holes with a positive and a negative pole connected with terminal screws with a power line, is composed of a pivotal column, a locking hook and a cover case. The pivotal column is fixed on a sidewall of the... | 07/18/2006 |
| 7033220 | Compact fluorescent lampholder A compact fluorescent lampholder includes a cap, a shell, an electric board and a base. The cap and the shell are combined together by hooking, and the electric board is combined with the base by plural pins, and then the electric board assembled together with the b... | 04/25/2006 |
| 7021815 | Halogen lampholder A halogen lampholder includes a base, a locking spring, two clipping members, two sliding members, a bottom cover, an outer shell and an outer ring. The base is assembled with the locking spring, the clipping members and the sliding members and then, with the bottom... | 04/04/2006 |
