Mark's Locksmith
| L&F | RVs | See Bargman |
| LaBelle | 1000, 1004, 999 | |
| Lane | cedar chest | LC1069 |
| Larson | boat | 1040A |
| Lawn tractors | mowers | 666 |
| LCA | lockers | LCA |
| Lebeco | 999 | |
| Leco | padlock | 999 |
| Leviton | pre-cut | Key News 56½, Ilco #60 |
| LiftKing | forklift | MRT1RP |
| Lightning | phone lock | 1154L |
| Linda Vista | RV | 1127ES |
| LL | desks, padlocks | 1041T, 1000 |
| Lock-O-Phone | phone lock | 1154L |
| Lori | X1014L, X1014F, #80 | |
| Lorie Products | 1041C | |
| Lowe & Fletcher | See Ilco #60 | |
| Lowe & Fletcher | gas cap | LF16 |
| Loxem | 1001EN, X1054K | |
| LSDA | 1522 | |
| Lucas | LU1, LU2 precuts, or K1122D | |
| Lucky | 1054TW | |
| Ludell | padlock | 997E, 1022 |
| Luggage | See Blue Dog luggage brochure | |
| Lund | tonneau cover | X7 |
| Lustre Line | 1004, 1307A, O1122A, D1054K, 1022, 1175N, 1054K | |
| Lynor | CN751 | O1122 |
| Lyon | desk | 1041G, 997E, L1122B |
| Lyons | locker | 1303S |