| Patents for G01R 7 - Instruments capable of converting two or more currents or voltages into a single mechanical displacement (437) |
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| 07/03/1990 | US4939675 Digital system for controlling mechanical instrument gauges |
| 05/30/1990 | EP0370616A2 A control arrangement for an air core gauge |
| 05/22/1990 | US4928060 Driving circuit of a crossed-coil type instrument using digital data pulse production |
| 05/08/1990 | US4924178 Drive apparatus for a cross coil type meter |
| 12/26/1989 | US4890057 Instrument with crossed-coil type movable magnet |
| 11/28/1989 | US4884058 Combination indicator apparatus for automotive vehicle |
| 09/12/1989 | US4866376 Cross-oil instrument having testing apparatus for vehicular sensor disconnection indication |
| 07/27/1989 | DE3843580A1 Measuring mechanism with crossed moving coils |
| 05/30/1989 | US4835460 Display device of the galvanometric or logometric type, including a control circuit in form of an integrated circuit chip |
| 05/02/1989 | US4827210 Cross-coil moving-magnet measuring instrument |
| 05/02/1989 | US4827209 Instrument with crossed-coil type movable magnet |
| 03/15/1989 | CN1031764A Crossed coil moving-magnet meter |
| 03/08/1989 | EP0306194A2 Instrument with crossed-coil type movable magnet |
| 07/26/1988 | US4760333 Crossed coil meter having concentrically wound magnetic shield |
| 06/15/1988 | EP0271397A1 Indicating device with a coil, and pivoting equipment of the galvanometer or logometer type |
| 05/25/1988 | CN87214094U Multi-function universal meter |
| 02/16/1988 | USRE32604 Electric indicator with return-to-zero feature and compensating coil to cancel the return-to-zero feature during measurement |
| 02/10/1988 | EP0255772A2 Instrument with crossed-coil type movable magnet |
| 12/22/1987 | US4715043 Cross-coil type indicating instrument |
| 09/15/1987 | US4694410 Physical quantity indicating device by a pointer |
| 04/22/1987 | EP0218737A1 Device for driving a cross-coil instrument |
| 04/14/1987 | US4658211 Circuit for regulating the torque of ratio meters |
| 12/30/1986 | US4633174 Crossed-coil rotating-magnet measuring instrument |
| 08/27/1986 | EP0192063A2 Movement for cross-coil instrument with rotary magnet |
| 11/12/1985 | US4553093 Tachometer |
| 09/24/1985 | CA1194126A1 Electric indicator with return-to-zero feature |
| 09/04/1985 | EP0153454A1 Device for adjusting the torque of quotient measuring instruments |
| 02/27/1985 | EP0133446A1 Moving crossed coil instrument |
| 01/08/1985 | US4492920 Electric indicator with return-to-zero feature and compensating coil to cancel the return-to-zero feature during measurement |
| 10/20/1982 | EP0062759A1 Crossed coil type instrument with pivoting magnet |
| 10/13/1982 | EP0062152A2 Method of providing an input to analogue display instrument in motor vehicles |
| 11/03/1981 | CA1111931A1 Method and apparatus for driving a gage |
| 09/22/1981 | US4291268 Apparatus for driving a deflecting coil type meter |
| 07/07/1981 | CA1104724A1 Digital frequency measuring circuitry |
| 10/28/1980 | US4230984 Method and apparatus for driving an air core gage |
| 09/27/1977 | US4051434 Digital frequency measuring circuitry |
| 03/23/1976 | US3946311 Air core gauge with expanded pointer range |