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

Method and apparatus for dredging employing a transport fluid fl

Method and apparatus for dredging having bow-stern movement of t

Method and apparatus for dredging of ground, particularly sand

Method and apparatus for harvesting and dewatering peat moss mat

Method and apparatus for mining nodules from beneath the sea

Method and apparatus for rooted plant excavating and plant packa