...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 |
| 7938689 | Rugged, polarized connector and adaptor This disclosure relates to a rugged, polarized connector or adaptor with interlocking end tabs and notches for polarizing a jack to a specific plug, and in one specific embodiment, a QMA-type RF connector where a rugged spanner nut and a rugged jack casing are used ... | 05/10/2011 |
| 7736196 | Rugged, polarized connector and adaptor This disclosure relates to a rugged, polarized connector or adaptor with interlocking end tabs and notches for polarizing a jack to a specific plug, and in one specific embodiment, a QMA-type RF connector where a rugged spanner nut and a rugged jack casing are used ... | 06/15/2010 |
| 6293485 | Two-stage retractable cord reel A cord storage assembly is disclosed. A length of cord can be wound onto a reel. The storage assembly includes a retraction mechanism and a latch mechanism. A latch pilot mechanism is provided to selectively engage and disengage the latch mechanism. The l... | 09/25/2001 |