Title:
Process of making pressure sensitive record material
United States Patent 2505471
Inventors:
Green, Barrett K.
Publication Date:
04/25/1950
Export Citation:
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Assignee:
NCR CO
Primary Class:
427/151
Other Classes:
106/220, 178/69A, 427/152, 427/395
International Classes:
B01J13/02; B41M5/124; B41M5/132; B01J13/02; B41M5/124; B41M5/132
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US Patent References:
2299693Coating for paper
2083206Safety-paper
1844199Pyro-recording paper
Foreign References:
GB550332A