| Patents for G01D 15 - Component parts of recorders for measuring arrangements not specially adapted for a specific variable (3,259) |
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| 09/08/1981 | US4288798 Stylus changing device |
| 09/03/1981 | WO1981002465A1 Ink jet printer |
| 09/01/1981 | US4287525 Multi-pin record electrode assembly and driving method of the same |
| 09/01/1981 | US4287523 Valve for ink jet printer |
| 08/18/1981 | US4284996 Driving ink jet recording elements |
| 08/18/1981 | US4284994 Laser beam recorder |
| 08/18/1981 | US4284252 Cartridge for strip chart recorders and method of using same |
| 08/11/1981 | US4283732 Recording system with inter-line space positioning means |
| 08/11/1981 | US4283730 Droplet control aspects--ink evaporation reduction; low voltage contact angle control device; droplet trajectory release modes; uses for metallic ink drops in circuit wiring and press printing |
| 08/11/1981 | CA1106898A1 Trenched stimulating plate for a jet drop recording head |
| 08/04/1981 | US4282533 Precision orifice nozzle devices for ink jet printing apparati and the process for their manufacture |
| 08/04/1981 | CA1106434A1 Ink jet printer for selectively printing different resolutions |
| 07/28/1981 | US4281331 Variable rate ink jet printing |
| 07/28/1981 | US4281329 Containing a carbonic acid ester; for ink jet printing |
| 07/23/1981 | WO1981002061A1 Ink jet printer |
| 07/21/1981 | US4280130 Forming droplets for ink jet printing |
| 07/21/1981 | US4279961 Electrostatic record material |
| 07/15/1981 | EP0031835A1 Stacked drop generators for pulsed ink jet printing. |
| 07/14/1981 | US4278983 Ink jet writing device |
| 07/14/1981 | US4278982 Optical recording device |
| 07/14/1981 | CA1105068A1 Resistively coated deflection ribbon for an ink jet printing device |
| 07/08/1981 | EP0031447A2 Apparatus for providing a constant density trace of an analog signal |
| 07/07/1981 | US4276776 Temperature/pressure transducer |
| 06/30/1981 | CA1104255A2 Micro computerized miniature postage meter |
| 06/23/1981 | US4275401 Method and apparatus for sorting and deflecting drops in an ink jet drop recorder |
| 06/16/1981 | US4274102 Multi-element writing instrument |
| 06/09/1981 | US4272773 Ink supply and filter for ink jet printing systems |
| 06/09/1981 | US4272772 Priming apparatus for liquid ink writing instruments |
| 06/09/1981 | US4272771 Ink jet printer with multiple nozzle print head and interlacing or dither means |
| 06/02/1981 | US4271417 Electrographic imaging with non-sequential electrode actuation |
| 06/02/1981 | US4271414 Thermal array protection apparatus |
| 06/02/1981 | CA1102446A1 Facsimile cassette with wire electrode |
| 06/02/1981 | CA1102393A1 Apparatus for producing multiple uniform fluid filaments and drops |
| 06/02/1981 | CA1102392A1 Recorder pen with ink jet writing device |
| 05/19/1981 | US4268841 Image recording method and apparatus therefor |
| 05/19/1981 | US4268837 Ink jet recording instrument |
| 05/19/1981 | CA1101535A1 Instrument for recording blood pressure |
| 05/14/1981 | WO1981001329A1 Magnetic printing head having a hight signal-to-noise ratio |
| 05/12/1981 | CA1101045A1 Fault detection and compensation circuit for ink jet printer |
| 05/05/1981 | US4266229 Light sensitive jet inks |
| 04/28/1981 | US4264932 Picture signal receiver for facsimile and the like |
| 04/28/1981 | US4264913 Electric discharge recording method and material with non-recording layer |
| 04/21/1981 | US4263602 Constant flow rate liquid supply pump |
| 04/15/1981 | EP0027014A2 Electrographic recorder |
| 04/15/1981 | EP0026836A1 Ink jet printer |
| 04/14/1981 | US4262193 Photograph multiplying factor automatic-counting scale |
| 04/07/1981 | CA1098763A1 Electro-erosion head and manufacturing method |
| 03/31/1981 | US4259677 Method and apparatus for recording the compression pressure of internal combustion engines |
| 03/31/1981 | US4259676 Thermal print head |
| 03/24/1981 | US4258367 Light sensitive jet inks |
| 03/24/1981 | CA1098162A1 Object deflection sensor |
| 03/24/1981 | CA1098158A1 Interchangeable ink supply |
| 03/17/1981 | CA1097719A2 Micro computerized miniature postage meter |
| 03/17/1981 | CA1097598A1 Pen recorder driving mechanism |
| 03/11/1981 | EP0024786A2 Printing apparatus |
| 03/11/1981 | EP0024641A2 Arrangement for advancing the electrodes in metal paper printers |
| 03/10/1981 | US4255234 Automatic flux mapping system |
| 03/03/1981 | US4253724 Recording optical system |
| 03/03/1981 | US4253617 Speed governor for a disposable data recorder |
| 02/24/1981 | US4253104 Strip chart recorder |
| 02/24/1981 | US4252283 Electronic thermograph |
| 02/17/1981 | US4251826 Method of and apparatus for manual writing using coded pulse train |
| 02/17/1981 | US4251823 Ink jet recording apparatus |
| 02/17/1981 | CA1095865A1 Graphic recording system |
| 02/10/1981 | USRE30512 Strip chart recorder |
| 02/10/1981 | US4250511 Thermal transfer color printer |
| 02/10/1981 | US4249807 Color plotting device and method |
| 02/10/1981 | US4249745 Recording apparatus |
| 02/05/1981 | WO1981000300A1 Electrode assembly for facsimile machine |
| 02/03/1981 | CA1095003A1 Electric discharge recording method and material |
| 01/28/1981 | EP0023102A1 Optical disc and method of recording information thereon |
| 01/28/1981 | EP0023020A1 Evasing device for a recording apparatus |
| 01/27/1981 | CA1094632A1 Rotary electrical printer and method |
| 01/22/1981 | WO1981000151A1 Stacked drop generators for pulsed ink jet printing |
| 01/20/1981 | US4246640 Automatic recorder abscissa scaling |
| 01/20/1981 | US4246587 Thermal array protection method and apparatus |
| 01/20/1981 | CA1094211A1 Indicating recorder |
| 01/20/1981 | CA1094146A1 No translation available |
| 01/20/1981 | CA1094145A1 No translation available |
| 01/13/1981 | US4245228 Laser plotter |
| 01/13/1981 | US4245227 Ink jet head having an outer wall of ink cavity of piezoelectric material |
| 01/13/1981 | US4245224 Drive circuit for ink jet discharging head |
| 01/07/1981 | EP0021755A1 Pressure pulse drop ejecting apparatus |
| 01/07/1981 | EP0020974A1 Electrochromic printing ink dissolved in water and method for printing with this printing ink |
| 01/07/1981 | EP0020566A1 Ink jet printing |
| 01/06/1981 | US4243694 Jet ink process and ink composition fluorescent in ultraviolet light |
| 12/30/1980 | US4242689 Ablative optical recording medium |
| 12/30/1980 | US4242687 Heated deflection electrode assembly for a jet drop recorder |
| 12/30/1980 | US4242440 Thermochromic polyacetylenes used in laser beam recording method |
| 12/30/1980 | CA1092637A1 Interchangeable printhead |
| 12/23/1980 | US4241357 Method and apparatus for operating an ink jet |
| 12/23/1980 | US4241356 Recording medium for thermographic recording of data items |
| 12/23/1980 | US4241355 Metal phthalocyanine dye for television recording |
| 12/16/1980 | US4240085 Electrographic recorder |
| 12/16/1980 | US4240084 Electrographic recorder with writing, developing and driving assembly |
| 12/16/1980 | US4240083 Programmable strip chart recorder |
| 12/16/1980 | US4240081 Ink jet printing |
| 12/10/1980 | EP0020212A1 Printer having a mechanism for transversal movement of a platen-supported recording material relative to a printhead |
| 12/02/1980 | US4237467 Thermal writing device for recording apparatus |
| 11/25/1980 | US4236163 Thermal recording stylus |