...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 |
| 7609518 | Cooling computer components A tank and a lid are configured to mate to provide a substantially airtight container for containing a processing board for a computer and a liquid. A cooling system is configured to cool the interior of the container, and a serial data connection is provided betwee... | 10/27/2009 |