| Kinetek Inc (Deerfield, IL)
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| Kraftronics Inc (Pensacola, FL)
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| Lanco Contact Co (Carlsbad, NM)
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| Laser Grade Corp (Dexter, MO)
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| Leach International Corp (Buena Park, CA)
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| Lewus Phase Converters (Payson, AZ)
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| Line Electric (Glastonbury, CT)
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| Link Control Systems (Ronkonkoma, NY)
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| L-Ron Corp (Crystal Lake, IL)
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| Machine Applications Corp (Sandusky, OH)
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| Macrodyne Inc (Clifton Park, NY)
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| Magnetek Drives & Systems (Pittsburgh, PA)
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| Malema Engineering Corp (Boca Raton, FL)
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| Mars Controls Co (Hickory Hills, IL)
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| Martin Automatic Inc (Rockford, IL)
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| Master Control Systems Inc (Lake Bluff, IL)
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| Maverick Technical Systems Inc (Gladewater, TX)
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| Mc Cleer Power Inc (Jackson, MI)
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| Mc Diarmid Controls Inc (Eugene, OR)
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| Mcu Engineering Corp (Farmington, MI)
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| Mdi (Milltown, NJ)
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| Meder Electronic Inc (Fall River, MA)
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| Mesa Products Inc (Tallahassee, FL)
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| Metrex Valve Corp (Glendora, CA)
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| Metrix Instrument Co (Houston, TX)
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