| Business Name | Address | |
| Mika Locksmiths & Hardware | 736 Burnham Ave Calumet City, IL 60409 |
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| Columbia Lock & Key | 6560 S Columbia Ave Hammond, IN 46320 |
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| Elmer & Son Locksmiths | Hammond, IN 46320 | |
| King Locksmith | South Holland, IL 60473 | |
| King Locksmith | 15240 Greenwood Rd South Holland, IL 60473 |
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