Did You Know...
...that Kleenex tissue was originally designed to be a gas mask filter? It was developed at the beginning of World War I to replace cotton, which was then in short supply as a surgical dressing.
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| Number | Title | Issue Date |
| 8150094 | Electroacoustic transducer An electroacoustic transducer comprises an electric sound conversion section that vibrates a mechanical device based on an electric signal so as to emit a sound wave; and an electromagnetic wave radiation section that generates and emits an electromagnetic wave from... | 04/03/2012 |
| 7603131 | System and method for providing locally applicable internet content with secure action requests and item condition alerts Optimized delivery of locally applicable Internet content to users. A cache of locally applicable Internet content is maintained in a local content server, based upon a monitoring of locations of users requesting Internet content. Requests for Internet content are r... | 10/13/2009 |
| 6570871 | Internet telephone service using cellular digital vocoder A system and method for providing telephone type services over the internetwork commonly known as the Internet. Wireless digital telephones in communication with wireless digital communications systems have speech coders that generate digital voice sample... | 05/27/2003 |
| 6052705 | Video signal processor with triple port memory A digital video signal processor using parallel processing includes an input serial-access memory having memory cells in which data is inputted into successive ones of the memory cells in response to a programmed-controlled pointer and a three or more por... | 04/18/2000 |
| 5921611 | Upwardly retracting vehicle door An upwardly retracting vehicle door is disclosed, such as for use on the rear of a mini-van. The door includes a lower primary door panel and an upper secondary door panel, such as a glass window, that is retractable into the primary door panel. The prima... | 07/13/1999 |
