| Business Name | Address | |
| Tri-Technic Inc | 18285 Highway 108 Jamestown, CA 95327 |
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| Bendix Electric | 19203 Soulsbyville Rd Sonora, CA 95370 |
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| Allegri Electric | Sonora, CA 95370 |
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| Tri-Technic Inc | 55 W Stockton St Sonora, CA 95370 |
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| Baldwin Electric Co | 20690 Resort Rd Sonora, CA 95370 |
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