LandOfFree - US Patents - Listing for Earth working

Earth working – With wheel substitute

Agricultural implement frame, track assembly and cart

Earth working – With means to facilitate mounting of implement on motor vehicle – Implement has ground support

Agricultural implement having a set of ground working tools

Earth working – Plural wheeled implements – Outrigged implement adjustable inwardly

Agricultural implement having field and transport modes

Earth working – Plural wheeled implements – Outrigged implement adjustable inwardly

Agricultural implement having field and transport modes

Earth working – Plural wheeled implements – Outrigged implement adjustable inwardly

Agricultural implement having folding draft links

Earth working – Plural wheeled implements – Outrigged implement adjustable inwardly

Agricultural implement having forward folding wing booms

Earth working – Plural wheeled implements – Outrigged implement adjustable inwardly

Agricultural implement having rock shaft actuated transport whee

Earth working – Plural wheeled implements – Outrigged implement adjustable inwardly

Agricultural implement including a central section and two wing

Earth working – Ground support moved vertically relative to frame by draft...

Agricultural implement lift wheel structure

Earth working – With actuator adapted to lift tool for transport on wheeled... – Central group liftable vertically – side groups movable inwardly

Agricultural implement lifting mechanism

Earth working – Guided by walking attendant; supported – propelled – or held... – Hand tool

Agricultural implement provided with a scraper and a blade

Earth working – Automatic power control

Agricultural implement sectional frame with depth limit

Earth working – Plural wheeled implements – Outrigged implement adjustable inwardly

Agricultural implement with common mechanism for raising/lowerin

Earth working – With actuator on trailing ground supported frame for moving... – Vertically

Agricultural implement with constant frame attitude maintaining

Earth working – Miscellaneous

Agricultural implement with double wing folding mechanism using

Earth working – Mast type hitch – With auxiliary vertical adjustment

Agricultural implement with down-force control

Earth working – Plural wheeled implements – Outrigged implement adjustable inwardly

Agricultural implement with flexible wing locking system

Earth working – Plural wheeled implements – Outrigged implement adjustable inwardly

Agricultural implement with foldable tool supporting frame

Earth working – Miscellaneous

Agricultural implement with foldable wing