| Precision Filters Inc (Ithaca, NY)
|
| Prefix Corp (Rochester, MI)
|
| Prime Instruments Inc (Cleveland, OH)
|
| Prime Yield Systems (Saint Paul, MN)
|
| Prob-Test Inc (Fontana, CA)
|
| Programmed Test Sources Inc (Littleton, MA)
|
| Pulse Instruments Co (Torrance, CA)
|
| Qei Corp (Williamstown, NJ)
|
| Quality Instruments Inc (Spring Hill, FL)
|
| Quantek Instruments (Grafton, MA)
|
| Radcal Corp (Monrovia, CA)
|
| Radiometrics Corp (Boulder, CO)
|
| Ranger Analytics (Stafford, TX)
|
| Reliability Inc (Houston, TX)
|
| Retina Systems Inc (Seymour, CT)
|
| Ritec Inc (Warwick, RI)
|
| Ron Fisher & Assoc (Tulsa, OK)
|
| Rotek Instrument (Waltham, MA)
|
| Rst/Rosson Screen Technologs (Lakeland, FL)
|
| Rtd Co (Andover, MN)
|
| Rucker & Kolls Inc (Milpitas, CA)
|
| Rycom Instruments Inc (Kansas City, MO)
|
| S A Instrumentation Co (San Diego, CA)
|
| S E Laboratories Inc (Santa Clara, CA)
|
| Sabor Corp (Los Angeles, CA)
|
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