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Sir William Preece, chief engineer, British Post Office ; 1878
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| Number | Title | Issue Date |
| 4406551 | Electric numbering machine An electric numbering machine which continuously prints a number of large figures by use of a single figure wheel, is compact in size, and reduces the printing operation time. A case of the machine is provided therein with a shaft interposed between a pai... | 09/27/1983 |
| 4386863 | Printer mechanism for typewriter An improved, low cost, high speed, impact printing apparatus usable as a typewriter or as a machine printer is disclosed which includes a carriage translatable along a page through a rack and gear assembly and having an electronically controlled printing ... | 06/07/1983 |
| 4023665 | Power driven typewriter A typewriter comprising a shiftable carrier supporting a rotatable type drum having a plurality of circumferentially extending rows of type characters thereon. Typing keys, when depressed, condition actuators and cause engagement of a power driven cyclic ... | 05/17/1977 |
| 4020757 | Machine for marking objects Machine for marking objects, such as steel sheets, comprising a frame, a raisable and lowerable holding cylinder being suspended from the frame, and an embossing head being arranged beneath and connected to the holding cylinder. An embossing wheel shaft b... | 05/03/1977 |
| 3944052 | Single element flexible type drum A type drum comprising a shell formed as an open network of rows and columns with type characters being formed at the intersections thereof, the shell being attached at one end by struts to a hub located within the shell and spaced therefrom and a combina... | 03/16/1976 |
| 3941228 | Electromagnetically operated printer A printer, suitable for operation by an electric computer, includes a traveling carriage. The carriage carries a type-head that is vertically and rotatably shiftable to properly orient a type element for printing. Movement of the carriage, as well as vert... | 03/02/1976 |
