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 |
| 6786660 | Detectable spool and associated hub An improved detectable spool for use with a ribbon includes an improved hub which includes a core and an indication member. The indication member is a generally planar metallic member that is substantially embedded in the core, with the indication member including a... | 09/07/2004 |
| 4173420 | Paper feeding mechanism in a printer The paper feeding mechanism in a printer has a paper feeding roller and a pressure roller cooperating with the paper feeding roller so as to feed a paper sandwiched therebetween for the printing operation of the paper, and the pressure roller is mounted o... | 11/06/1979 |
| 4114750 | Printer system having local control for dynamically alterable printing A printer system having local control for dynamically positioning a print head relative to a print medium utilizing positioning and print data signal inputs, including a control unit for receiving and storing data inputs, the control unit including circui... | 09/19/1978 |
| 4008795 | Removable cartridge for the inked ribbon for typewriters, calculating machines or other office machines A ribbon feed mechanism for the inked ribbon of a printing machine comprises two ribbon-carrying spools rotatably supported in a removable cartridge and two sensing levers which extend through a pair of apertures in the cartridge to sense the amount of in... | 02/22/1977 |
