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| Number | Title | Issue Date |
| 4946299 | Document processing apparatus A document processing apparatus has a printer for printing characters; a keyboard used for inputting characters such as alphabetical characters, symbols and numerical characters; attribute imparting circuitry for imparting an attribute to characters input... | 08/07/1990 |
| 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 |
| 4503615 | Guide structure A guide structure designed to locate blank spaces on a displayed form of a word processor through the utilization of a line scale and a character scale movably attached to and selectively positionable over the face of a conventional paper or like material... | 03/12/1985 |
| 4159130 | Apparatus for standardizing typewriting margins An apparatus for standardizing typewriting margins comprising a front sheet having lateral and longitudinal edges which has a window, and a back sheet attached along a seam adjacent three edges to the front sheet which leaves an opening along one edge. A ... | 06/26/1979 |
