Title:
Printout process and leuco bases of triphenyl methane dyes used therein
United States Patent 3140949

Inventors:
Sprague, Robert H.
Stewart, John A.
Publication Date:
07/14/1964
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Assignee:
HORIZONS INC
Primary Class:
Other Classes:
430/344, 430/340, 204/157.150
International Classes:
G03C1/675; G03C1/73
US Patent References:
2927025Photosensitive materials and recording media