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| MicroMetrics, Inc | |
| Motorola Semiconductor 3102 N. 56th Street - Phoenix, AZ 85018 USA - - | ||
| Microwave Device Technology Corporation | ||
| Hitachi Semiconductor | ||
| General Semiconductor | ||
| STMicroelectronics | ||
| Infineon Technologies AG | ||
| Vishay Intertechnology / Dale / Sprague / Vitramon / Roederstein | ||
| Metelics Corporation | ||
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