Title:
Diazo reproduction
United States Patent 3418469
US Patent References:
Printing process wherein an alkaline substance passing through stencil openings effects coupling of an azo dye in situ
- - 2597306
Developing of diazotype images
- - 2691587
/2732299.html
- - 2732299
Production of light-sensitive diazotype materials
- - 3027256
Thermally developable diazotype photoprinting material and production thereof
- - 3046128
Printing process wherein an alkaline substance passing through stencil openings effects coupling of an azo dye in situ
- - 2597306
Developing of diazotype images
- - 2691587
/2732299.html
- - 2732299
Production of light-sensitive diazotype materials
- - 3027256
Thermally developable diazotype photoprinting material and production thereof
- - 3046128
Inventors:
Gold, Robert M.
Publication Date:
12/24/1968
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Export Citation:
Assignee:
KEUFFEL & ESSER CO
Primary Class:
Other Classes:
430/162, 430/150
International Classes:
G03C1/52
US Patent References:
Foreign References:
| FR1336307A | ||||
| FR1377477A |