Azide Containing Patents (Class 430/194)
Polymeric azide (Class 430/195)
And monomeric processing ingredient (Class 430/196)
Polymeric mixture (Class 430/197)
  • Photographic screen stencil printing process
    Patent number: 4199359
    Abstract: A novel screen stencil comprising a screening material coated with a photo-swellable material, as well as a method of preparing and process of using same, are disclosed.
    Type: Grant
    Filed: December 16, 1974
    Date of Patent: April 22, 1980
    Assignee: Xerox Corporation
    Inventors: John W. Weigl, Carl Brynko