| Plasma Technics Transformers (Racine, WI)
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| Potter-Rayfield Coil Equipment (Bristol, VA)
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| Power Magnetic Corp (Perth Amboy, NJ)
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| Powertran Corp (Ferndale, MI)
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| Precision Econowind Inc (North Fort Myers, FL)
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| Precision Electronic Corp (Marshfield, MA)
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| Precision Electronics Inc (Copiague, NY)
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| Profile Electronics Inc (Berlin, NH)
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| Quality Magnetics (Yucca Valley, CA)
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| Quality Transformer & Elctrncs (Milpitas, CA)
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| Quality Transformer Corp (Waterbury, CT)
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| Raf Technologies Inc (Deland, FL)
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| Raycom Electronics Inc (Dover, PA)
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| Rodon Products Inc (Huntington Beach, CA)
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| Rogers Research Inc (Red Bank, NJ)
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| Sag Harbor Ind (Farmville, NC)
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| Sag Harbor Industries Inc (Sag Harbor, NY)
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| Santronics Inc (Sunnyvale, CA)
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| Satin American Corp (Shelton, CT)
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| Shur'Kut Corp (Nottingham, PA)
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| Skyway Magnetics (Warner Springs, CA)
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| Snc Mfg (Del Rio, TX)
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| Solomon Corp (Decatur, TN)
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| Southern Circuits & Components (De Kalb, MS)
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| Southern Electric (Statesboro, GA)
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