GOODS & SERVICES
In a Rut. To help motorists stuck in snow and mud, Campbell Chain Co. of York, Pa. has put on sale curved metal lugs that snap easily around tires. The Traction Klips, designed for emergency grip action, are flipped off with a special lever. Price: $5 a pair.
House Lining. New homes can be made virtually moisture-and termite-proof by lining exterior walls and foundations with a tough, translucent plastic film developed by Terre Haute's Visking Corp. "VisQueen" is noninflammable, will not dry out. Price: about 1½¢ per sq. ft.
Self-Sharpening Saw. A circular blade for power saws that can...