| Patents for G01D 15 - Component parts of recorders for measuring arrangements not specially adapted for a specific variable (3,259) |
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| 04/22/1980 | US4199770 Coincidence gate ink jet with increased operating pressure window |
| 04/22/1980 | US4199769 Coincidence gate ink jet with increased operating pressure window |
| 04/22/1980 | US4199768 Portable compact strip chart recorder with lost-motion protective connection to transducer |
| 04/22/1980 | US4199767 Nozzle valve for ink jet printers |
| 04/22/1980 | US4199765 Printing device for multiple recorders |
| 04/22/1980 | US4199413 Electric recording material and electric recording process |
| 04/22/1980 | CA1076078A1 Mechanism for accurate feeding of a recording medium |
| 04/15/1980 | US4198643 Jet drop printer with elements balanced about support plate in nodal plane |
| 04/15/1980 | CA1075755A1 Sequential ink jet printing system with variable number of guard drops |
| 04/08/1980 | US4197550 Apparatus for an automatic marking of drawings |
| 04/08/1980 | US4196625 Device for monitoring the ink supply in ink recording devices |
| 04/01/1980 | US4196437 Method and apparatus for forming a compound liquid jet particularly suited for ink-jet printing |
| 04/01/1980 | US4195936 Rotary printer and rotor structure |
| 03/18/1980 | CA1073727A1 Electrosensitive recording member with electrically conductive, light coloured intermediate and white, electrically destructable surface layers |
| 03/11/1980 | US4193078 Electrical contact for conductive-backed paper |
| 02/26/1980 | US4190848 Industrial process recorder incorporating improved roll chart assembly |
| 02/26/1980 | US4190846 Ink liquid concentration control in an ink liquid supply system for an ink jet system printer |
| 02/19/1980 | US4189736 Facsimile stylus assembly |
| 02/12/1980 | US4188634 Method for regulating ink flow in drafting pens |
| 02/12/1980 | US4188139 Method and apparatus for correctably printing characters with sublimable ink |
| 02/12/1980 | CA1071690A1 Ink supply for pressurized ink jet |
| 02/07/1980 | WO1980000185A1 Strip chart recorder |
| 02/06/1980 | EP0007394A1 Controlling device for the supply of ink to the writing implement of a mechanical ink-jet printer |
| 02/05/1980 | US4187512 Ink liquid supply system for an ink jet system printer |
| 02/05/1980 | US4187511 Method and apparatus for filling the movable reservoir of an inkjet printer |
| 02/05/1980 | US4187510 Device for recording vehicle speeds |
| 02/05/1980 | CA1071166A1 Recording chart lock |
| 01/29/1980 | US4186405 Marker holder clip |
| 01/29/1980 | US4186404 Tracing table |
| 01/29/1980 | US4186372 Brush holder for rectilinear recorder |
| 01/29/1980 | CA1070833A1 Astigmatizer for laser recording and reproducing system |
| 01/22/1980 | US4184487 Electrocardiograph |
| 01/09/1980 | EP0006331A2 Inking system for pen recorders |
| 01/08/1980 | US4183032 Electrostatic recording medium with elongated conductive segments |
| 01/08/1980 | US4183031 Ink supply system |
| 01/08/1980 | US4183030 Ink jet recording apparatus |
| 01/08/1980 | US4183029 Ink filter clogging sensor and indicator |
| 01/08/1980 | US4183028 High speed data recording arrangement |
| 01/01/1980 | US4181912 Electrostatic recording apparatus comprising improved electrode switching means |
| 12/25/1979 | US4180824 Head for electrically printing an image |
| 12/25/1979 | US4180821 Motion tape recorder |
| 12/25/1979 | CA1068760A Meniscus dampening drop generator |
| 12/25/1979 | CA1068759A Method and apparatus for applying magnetic liquid droplets to a recording surface |
| 12/25/1979 | CA1068659A Recorder with edge-guided belt |
| 12/18/1979 | CA1068327A1 Charge electrode for ink jet |
| 12/11/1979 | US4178601 Record drive means for rotary electrical stylus device |
| 12/11/1979 | US4178600 Record feed means for rotary electrical stylus device |
| 12/11/1979 | US4178599 Mounting structure for rotary electrical stylus device |
| 12/11/1979 | US4178598 Transfer or recording sheet having a textured surface |
| 12/11/1979 | US4178595 Ink jet printing apparatus with ink replenishing |
| 12/11/1979 | US4178583 Rotary printing method |
| 12/11/1979 | US4178197 Formation of epitaxial tunnels utilizing oriented growth techniques |
| 12/11/1979 | CA1067735A1 Conversion of stripe-geometry junction laser emission to a spherical wavefront |
| 12/04/1979 | US4177472 Rotary electrical printer and method automatic blackness control for rotary electrical printer |
| 12/04/1979 | US4177471 Carriage and raceway mechanism for an ink jet printer |
| 12/04/1979 | US4177469 Recorder with electrically conductive paper |
| 12/04/1979 | CA1067471A1 Device for recording measuring values |
| 11/27/1979 | US4176364 Grounding device for rotary electrical printer and method |
| 11/20/1979 | US4175266 Grooved deflection electrodes in an ink jet system printer |
| 11/20/1979 | US4175145 Spreading a liquid polyurethane polymer on a substrate by spinning; curing layer |
| 11/06/1979 | CA1065746A1 A1n masking for selective etching of sapphire |
| 10/30/1979 | US4173021 Sealing element for an automatic drafting pen |
| 10/23/1979 | US4172259 Graphic recording apparatus compensated for record medium velocity changes |
| 10/23/1979 | US4172258 Multicolor multipoint recorder |
| 10/09/1979 | CA1064091A1 Head assembly for a jet drop recorder |
| 10/02/1979 | US4170016 Priming apparatus for liquid ink writing instruments |
| 09/25/1979 | US4169285 Method for producing color representations of quantifiable data by maximizing differential perception of colors |
| 09/25/1979 | US4169008 Process for producing uniform nozzle orifices in silicon wafers |
| 09/18/1979 | US4168506 Film guide for optical scanners |
| 09/18/1979 | US4168505 Stylus construction |
| 09/11/1979 | US4167743 Recorder pen servicing accessory |
| 09/11/1979 | US4167742 Damping means for an ink jet printing device |
| 09/04/1979 | CA1061748A1 Marking pen with three phases of increasing capillarity |
| 08/28/1979 | US4166277 Electrostatic ink ejection printing head |
| 08/28/1979 | US4166144 Electrosensitive metalized label stock |
| 08/28/1979 | CA1061301A1 Liquid level measuring apparatus |
| 08/21/1979 | US4165513 Signal-operated marking device |
| 08/21/1979 | US4165512 Recording apparatus |
| 08/14/1979 | US4164745 Printing by modulation of ink viscosity |
| 08/14/1979 | US4164744 Disposable printing head for recording measuring instruments, and the like |
| 08/08/1979 | EP0003262A1 Medium, process and system for recording information |
| 07/31/1979 | US4163075 Electric discharge recording material |
| 07/31/1979 | US4162674 Instrument for recording blood pressure |
| 07/24/1979 | US4162503 Printing head with taut wire electrodes |
| 07/24/1979 | US4162502 Printer with electrostatic ink control |
| 07/24/1979 | CA1059197A1 Ink jet nozzle structure and method of making |
| 07/12/1979 | WO1979000404A1 Medium for recording by thermal deformation |
| 07/03/1979 | US4160255 Recording apparatus with intermittent power usage |
| 06/27/1979 | EP0002591A1 Priming means for liquid ink writing apparatus |
| 06/26/1979 | US4159479 Electrolytic graphic recorder with cover receiving recording web |
| 06/19/1979 | US4158846 Convertible graphic recorder |
| 06/13/1979 | EP0002255A1 Recording apparatus |
| 06/12/1979 | US4158205 Record spool holder |
| 06/05/1979 | US4157553 Recording electrode power limiting circuit for an electrographic recorder |
| 06/05/1979 | US4157552 Pen holding device for an automatic drafting device |
| 06/05/1979 | CA1055892A1 Disposable marker having plastic-sheathed fibrous ink reservoir |
| 05/08/1979 | US4153901 Variable frequency multi-orifice IJP |
| 05/01/1979 | US4152710 Ink liquid supply system for an ink jet system printer |
| 05/01/1979 | US4152709 Recorder for electric appliances |
| 04/24/1979 | US4151535 Electro-erosion head and manufacturing method |