Patents Assigned to Deritend Engineering Limited
  • Box makers forms
    Patent number: 5027633
    Abstract: A method of bending rule to be used to cut a slot as part of a box makers form comprising locating the rule tangentially of a pair of rollers and driving a former between the rollers so that the rule pivots around the rollers as it is bent.
    Type: Grant
    Filed: April 30, 1990
    Date of Patent: July 2, 1991
    Assignee: Deritend Engineering Limited
    Inventor: Leonard Smith