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Karl Marx
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| Number | Title | Issue Date |
| 4491854 | Printer with a guide ruler for flattening a record carrier A printer such as an ink jet printer in which a record carrier is fed around a transport roller and over an elongated flat supporting surface extending alongside the roller, with a printing head displaceable along that surface. To cause the carrier to lie... | 01/01/1985 |
| 3934696 | Keyboard touch control A keylever touch control mechanism for typewriters includes keylevers mounted on a common pivot which spans the distance between the spaced side frames of the typewriter. The keylevers are supported in their rest position by a plurality of underlying leaf... | 01/27/1976 |