| Construction Equipment |
| Earth-moving Equipment, Tracked |
| Engine, In-Line or V |
| Engine, Radial |
| Engine, Ramjet |
| Engine, Steam |
| Engine, Turbo-Jet/Turbo-Fan |
| Engine, Turbo-prop/Turbo-shaft |
| Farm Tractor |
| Farm Tractor Implements |
| Forestry Equipment |
| Movie Projector |
| Periscope |
| Rocket Assist |
| Searchlight, Carbon-Arc |
| Simulator, Flight |
| Start Cart, Aircraft |
