|
US4678045A
|
|
Turbine tool
|
|
US4553611A
|
|
Pressure drop regulator for downhole turbine
|
|
US4432423A
|
|
Apparatus for extended straight line drilling from a curved borehole
|
|
US4434862A
|
|
Downhole turbine rotary drilling device
|
|
US4333539A
|
|
Method for extended straight line drilling from a curved borehole
|
|
US4311340A
|
|
Uranium leeching process and insitu mining
|
|
US3904231A
|
|
Form jack and hoist connector for stripping and lifting a masonry casting from a form
|
|
US3310275A
|
|
Form for casting concrete subgrade stair structures
|
|
US3307308A
|
|
Precast sub-grade reinforced concrete stairway
|
|
US3147531A
|
|
Form for recessed concrete stairway
|
|
US2682324A
|
|
Metal frame construction
|
