User talk:Scarbtrebormint

Druvex. Druvex is the patented name for a style of knife serrations developed by a Sheffield cutler William Drew. In the photograph of a knife manufactured by Butlers of Sheffield the patent pending number xxxx is shown but to date no record has been found for the patent number used. A surviving family member of the Drews believes that the knife blade design was sold to a German company which may be why the patent never completed registration.