Lightweight trail groomer
Load ejection improvement for auger scrapers
Load ejection improvement for self-loading scrapers
Long-distance ski-track ploughing device
Loop circuit dredging apparatus
Lump peat machine
Machine for gathering oysters
Machine for uprooting tree stumps and trees
Manual scoop type snow pusher/lifter
Manual stump removal tool
Manually operable depth control for trenchers
Material directing device for an auger scraper
Material diverting apparatus for an auger scraper
Mechanical chain adjuster for scraper elevator chains
Mechanical shovel
Memory card with capability of error correction and error correc
Method and apparatus for breaking up lumps of stone from a subaq
Method and apparatus for deep sea mining
Method and apparatus for detaching coatings frozen on to surface
Method and apparatus for dredging