Mark's Auto Lockout Services
| Jasper | desks | O1122 |
| Jeep | AMC, Chrysler | |
| Jensen | mailbox | 1180S |
| Jofco | desk | 1069W, 1069N |
| John Deere | tractor | 1519, 1098JD, C1098JD, OKB145 |
| John Sterling | cabinets | 1043B |
| Johnson boats | See Ilco #60, Chrysler/Mercury | |
| Junkunc | padlocks | See American padlocks |