Mobile apparatus for carrying out work both above and below wate
Mobile directional high velocity air moving apparatus
Mobile earth mover bowl with loading rotor
Mobile earth mover having a scraper blade
Modified power unit for snow plows
Modular draging unit for collecting solid bodies on an underwate
Moldboard support assembly
Mouthpiece for a suction dredger
Muck dredging machine
Multi-purpose labor saver hand tool
Multi-shaft kneading auger system
Multiple circuit control
Multiple pumping chamber dredging apparatus
Nodule dredging bucket
Nordic ski track sled
Nursery stocks digging machine
Nursery tree remover
Ocean floor dredging
Oceanic mining system
Oceanic seaplow system