| Business Name | Address | |
| Inland Electrical Source | 9500 7th St Rancho Cucamonga, CA 91730 |
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| E B Electric | Alta Loma, CA 91701 |
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| Boal Electric | 5660 Della Ave Alta Loma, CA 91701 |
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| 60 Minute Svc | PO Box 501 Alta Loma, CA 91701 |
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| United Electric | PO Box 1104 Alta Loma, CA 91701 |
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