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 |
| 7392610 | Portable information sign devices The present invention relates to a portable information sign device. In one embodiment of the invention, a top plate comprises a foundation and three plate coupling ports. A center arm comprises an arm rod axially coupled to the top plate foundation. A sliding plate... | 07/01/2008 |
