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 |
| 5160012 | Crane system with continual conveyor system for moving discrete items of freight One or a plurality of circular conveyors are arranged at the transition points between vertical and horizontal conveyor sections in a continually operating conveyor system for moving items of freight, in particular sacks, cases, bundles, or the like. The ... | 11/03/1992 |
