| 991 | Lock,washer | Company Product |
| 992 | Lock-Up Valves | Company Product |
| 993 | Lockable Brass Full Bore Ball Valves | Company Product |
| 994 | Lockers | Company Product |
| 995 | Locking Assembly | Company Product |
| 996 | Locking Mechanism | Company Product |
| 997 | Locking Plate | Company Product |
| 998 | Locking Pliers | Company Product |
| 999 | Locknuts | Company Product |
| 1000 | Locks | Company Product |
| 1001 | Locksmiths | Company Product |
| 1002 | Locomotive Packings | Company Product |
| 1003 | Locomotives | Company Product |
| 1004 | Log Loaders | Company Product |
| 1005 | Logging Companies | Company Product |
| 1006 | Logging Truck Parts | Company Product |
| 1007 | Logging Trucks | Company Product |
| 1008 | Logging Winches | Company Product |
| 1009 | Logic Analysers | Company Product |
| 1010 | Logic Modules | Company Product |
| 1011 | Logic Probes | Company Product |
| 1012 | Logic Valves | Company Product |
| 1013 | Logistic Equipment | Company Product |
| 1014 | Logistics Software | Company Product |
| 1015 | Logistics Support Companies & Facilities | Company Product |
| 1016 | Logistics Trolley | Company Product |
| 1017 | Logo Design | Company Product |
| 1018 | Long Back Caps | Company Product |
| 1019 | Long Bends | Company Product |
| 1020 | Long Distance Cable Carrier | Company Product |