You could even break it down further.
AMC- Twin Grip
Buick- Positive Traction
Chevrolet- Positraction, Gov-Lock (later)
Ford- Equa-Lock or Traction-Lock
Mopar- Sure Grip
Oldmobile- Anti-Spin
Pontiac- Safe-T-Track
Studebacker and Packard- Twin-Traction
AMC- Twin Grip
Buick- Positive Traction
Chevrolet- Positraction, Gov-Lock (later)
Ford- Equa-Lock or Traction-Lock
Mopar- Sure Grip
Oldmobile- Anti-Spin
Pontiac- Safe-T-Track
Studebacker and Packard- Twin-Traction