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| Winland Electronics, Inc. |   |
| Greenspan Technology |   | |
| Sutron Corporation |   | |
| Campbell Scientific, Inc. |   | |
| Unidata America |   | |
| Automata, Inc. |   | |
| Delta T Devices Ltd |   | |
| Wescor, Inc |   | |
| FTS Forest Technology Systems, Inc. |   | |
| Aanderaa Instruments |   | |
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