Patents Assigned to High Point, Incorporated
  • Method of producing high quality photographs on microfiche
    Patent number: 4153456
    Abstract: There is disclosed a method for producing improved quality photographs on microfilm and improved quality diazo microfiche duplicates. A negative half-tone image of a real world subject is produced on a photosensitive medium. A negative of that image is then formed on microfilm, such negative being a positive half-tone image of the real world subject. Diazo duplicates are then made, if desired, using the negative image (positive half-tone image of the real world subject) on the microfilm as the master.
    Type: Grant
    Filed: August 22, 1977
    Date of Patent: May 8, 1979
    Assignee: High Point, Incorporated
    Inventor: William C. Farmer