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 |
| 6696672 | Heating lamp brackets for reaction chambers of evaporation coating machines A heating lamp bracket for reaction chambers of evaporation coating machines. The heating lamp bracket uses paired and insulation devices to mount heating lamps to a chamber wall of a reaction chamber. The bracket includes a mounting frame that has an ins... | 02/24/2004 |
