| CLARKE-HESS | Phase Standards |
| CLARKE-HESS | Transconductance Amplifiers |
| CROPICO | Precision Resistance Decade Boxes |
| CROPICO | Micro-Ohmmeters |
| INNOVENTIONS | Memory Testers |
| ROTEK | Watt Standards |
| ROTEK | Power Calibrator |
| SOKEN | Hot Coil Ohmmeters |
| SOKEN | Iron Loss Tester |
| THURLBY | DC Power Supplies |
| YOKOGAWA | Charts & Pens |
| YOKOGAWA | Chart Recorders & Chartless Recorders |