Posted 11 years ago
TheGateKee…
(222 items)
Clever design of a barbed warning strip for fences. Attributed to John W. Nadelhoffer, of De Kalb, Illinois, patent #201,889, April 2, 1878.
Clever design that firmly locks the barbs into position when stretched.
The sheet metal strip is 1" wide. Visible from a great distance.