|
US3986583A
|
|
Force transmitting coupling
|
|
US3880451A
|
|
Force transmitting coupling
|
|
US3220478A
|
|
Casing cutter and milling tool
|
|
US3052310A
|
|
Combined reamer and drill string stabilizer
|
|
US3110084A
|
|
Piloted milling tool
|
|
US2896292A
|
|
Automatic tubing spider assembly
|
|
US2715414A
|
|
Combined automatic shut-off and check valve assembly for tanks and the like
|
|
US2670046A
|
|
Casing scraper
|
|
US2655935A
|
|
Pressure relief valve assembly
|
|
US2410291A
|
|
Stuffing box
|
|
US2433127A
|
|
Machine tool holder
|
|
US2322695A
|
|
Pipe milling device
|
|
US2322694A
|
|
Pipe cutter and reamer
|
|
US2287432A
|
|
Pipe holding slip
|
|
US2213498A
|
|
Milling tool
|
|
US2103622A
|
|
Side tracking apparatus
|
|
US2145422A
|
|
Whip stock anchor
|
|
CA545595A
|
|
Pressure relief valve assembly
|
