| Business Name | Address | |
| Lock Doctor | 4249 E State St Rockford, IL 61108 |
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| Lock Doctor | 3437 S Bend Rd Rockford, IL 61109 |
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| Under Lock & Key | Rockford, IL 61109 | |
| Elmer'S Lock-N-Key | 311 N 6th St Rockford, IL 61107 |
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| B Robertson Lock Svc | 1027 S State St Belvidere, IL 61008 |
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