| Henry Dietz Co Inc (Astoria, NY)
|
| Heraeus Electro-Nite Co (Peru, IN)
|
| Herrmann Associates Inc (Pittsburgh, PA)
|
| Hillcrest Radiant Heating Co (Cleveland, OH)
|
| Hoekstra Building Automation (Homewood, IL)
|
| Horiba Instruments Inc (West Chicago, IL)
|
| Howard Manufacturing & Cnsltng (Bethlehem, PA)
|
| Huber-Usa (Northport, NY)
|
| I C Innovations (Prospect Heights, IL)
|
| I R Cameras (Walpole, MA)
|
| I R Rents (Tulsa, OK)
|
| I R Svc Corp (Verona, NJ)
|
| Illumitronics Inc (Medford, OR)
|
| Image Works A Production Co (San Diego, CA)
|
| Incon Franklin Fueling Systems (Saco, ME)
|
| Indigo Systems Corp (Goleta, CA)
|
| Industrial Combustion Svc Inc (Charlotte, NC)
|
| Industrial Measurement Co (Chesterfield, MO)
|
| Industrial Scientific Corp (Oakdale, PA)
|
| Industrial Troubleshooters Inc (Renfrew, PA)
|
| Infra Red Vision Technology (Buellton, CA)
|
| Infra-Red Heating (Bridgeview, IL)
|
| Infrared Heating Sales & Svc (Elk River, MN)
|
| Infra-Red New York (East Islip, NY)
|
| Infrared Solutions Inc (Minneapolis, MN)
|
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