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"Transmission of documents via telephone wires is possible in principle, but the apparatus required is so expensive that it will never become a practical proposition."
Dennis Gabor, British physicist
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| Number | Title | Issue Date |
| 4697517 | Inking apparatus for a mailing machine In a mailing machine, having a removable postage meter with a rotatable printing drum and printing die there is an inking apparatus included with the mailing machine. The inking apparatus has a ink supply cartridge which engages an ink transfer roller mou... | 10/06/1987 |
| 4536218 | Process and compositions for lithographic printing in multiple layers Printed materials such as tickets, lottery forms, cards and contest forms, bearing a hidden message which is revealable by scratching off a covering opaque layer, are prepared by printing the message on the substrate, lithographing a protective layer such... | 08/20/1985 |
| 4440083 | Disposable inking cartridge A disposable inking cartridge in combination with a housing for transferring ink to a secondary surface, including a housing having a pair of sidewalls, each of the sidewalls having a locating guide, wherein the locating guide includes at its trailing end... | 04/03/1984 |
| 4359940 | Ink supply devices for portable labeling machine The disclosure concerns an ink supply device for use in a labeling machine. The ink supply device includes at least one inking roller. Guide slots formed in the side plates of the frame of the labeling machine guide the inking roller to roll over the prin... | 11/23/1982 |
| 4213389 | Ink supply device for hand labeler An ink supply device for inking the types of a hand labeler device, usually including at least two inking rollers which are rotatable over the type surfaces of a printing head; these ink rollers are removably held in an ink roller assembly which is, in tu... | 07/22/1980 |
| 4056183 | Ribbonless endorser having a shiftable inked platen and feed roller A printer unit for selectively printing on documents fed between a matrix printer and a rotatable inked platen. The platen is actuably movable between a retracted position and an advanced print position. The document while being printed upon is moved at t... | 11/01/1977 |
| 4044677 | Inking mechanism There is disclosed a printing apparatus having a print head and an inking mechanism for inking the print head. The inking mechanism comprises an ink roller, an inker body or carrier for the ink roller and structure for movably mounting the inker body. The... | 08/30/1977 |
| 4004511 | Printing apparatus An apparatus for applying markings to packed articles transported by a conveyor is provided with a stamp, which is laterally expulsed when an article passes by. The stamp comprises a holder and a printing head connected with the holder by at least one spr... | 01/25/1977 |
