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 |
| 5429444 | Column locator for computer page place marker A column locator for use on a computer page place marker for locating columns of information on a printed computer page. The locator has a jaw-like opening formed of upper and lower legs and a pointer which engages the place marker, permitting slidable mo... | 07/04/1995 |
| 4799812 | Computer page place marker A flexible elongated transparent computer page place marker having a longitudinal marking surface for locating specific printed lines of information on a standard printed computer page and raised projections extending from the underside thereof for engage... | 01/24/1989 |
| 4487517 | Printer adapted to perform margin/tabulator setting function There is disclosed a printing apparatus having control equipment for controlling the printing position. The control equipment is detachably mounted on the printing apparatus.... | 12/11/1984 |
| 4169685 | Tab layout display for a typewriter A panel of selectively-controllable indicator elements is associated with a viewable escapement scale on a typewriter and provides an indication of a set of operative tab stops stored in an electronic memory. Escapement position codes extracted from an el... | 10/02/1979 |
