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| Altek Industries |   | |
| Conax Buffalo Technologies |   | ||
| Jenco Instruments Inc. |   | ||
| Lake Shore Cryotronics, Inc. |   | ||
| Mikron Instrument Company, Inc. |   | ||
| Minco Products, Inc. |   | ||
| Thermo Electric Company |   | ||
| Vibration Sensing Devices |   | ||
| Devar Inc. |   | ||
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