Lockable anchor for insertable progressing cavity pump

Lockable drill steel and chuck assembly

Lockable motor assembly for use in a well bore

Lockable overshot

Lockable swivel apparatus and method

Lockable swivel apparatus and method

Lockdown mechanism for well tools requiring fixed-point packoff

Lockdown mechanism for wellhead connector

Locking a sample tube in a downhole hammer

Locking apparatus for earth boring cutter or stabilizer

Locking apparatus with packoff capability

Locking arrangement for a threaded connector

Locking assembly and a seal assembly for a well

Locking assembly for treating and testing tools

Locking assembly for well devices

Locking cap for subsea tree

Locking clutch for downhole motor

Locking device for a drilling device

Locking device for a tool with telescopically displaceable...

Locking device for a wire line core drilling system