Title:
Heat-sensitive copying-paper
United States Patent 3108896
US Patent References:
Pyro-recording paper
- - 1844199
Light-sensitive anthraquinone sulfonic acid photoprinting material containing a cupric salt
- - 2504593
Heat-sensitive copying paper
- - 2663654
Heat-sensitive copying paper
- - 2663656
Heat-sensitive copying paper
- - 2663657
Pyro-recording paper
- - 1844199
Light-sensitive anthraquinone sulfonic acid photoprinting material containing a cupric salt
- - 2504593
Heat-sensitive copying paper
- - 2663654
Heat-sensitive copying paper
- - 2663656
Heat-sensitive copying paper
- - 2663657
Inventors:
Richard, Owen
Publication Date:
10/29/1963
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Export Citation:
Assignee:
MINNESOTA MINING & MFG
Primary Class:
Other Classes:
503/210, 106/31.170, 101/471, 106/31.200, 430/964, 503/217, 428/913
International Classes:
B41M5/32
US Patent References:
| 2910377 | Heat-sensitive copying-paper |