...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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| Application No. | Application Title | Issue Date |
| 20110289391 | INTERLEAVER DEVICE AND RECEIVER FOR A SIGNAL GENERATED BY THE INTERLEAVER DEVICE The inventive concept enables backward-compatible extension of existing interleaver-based transmission systems to the effect that in addition to an existing logical transport channel, which is interleaved using a standardized interleaver profile, further logical transpo... | 11/24/2011 |