| Patents for G01R 35 - Testing or calibrating of apparatus covered by the other groups of this subclass (8,105) | |
|---|---|
| 06/1977 | |
| 06/21/1977 | US4031469 Receiver gain calibration |
| 05/1977 | |
| 05/03/1977 | US4021724 Apparatus for use in determining a characteristic of a cathode ray tube |
| 02/1977 | |
| 02/01/1977 | US4006420 Calibratable heterodyne receiver |
| 12/1976 | |
| 12/28/1976 | US3999866 Wafer test system with integrated calibration |
| 03/1976 | |
| 03/09/1976 | US3943413 Tamperproof external test contact arrangement for watthour meters |