Method of using heat sensitive copying paper
United States Patent 2740896
US Patent References:
/0897954.html
- - 0897954

Recording paper
- - 1783442

Pyro-recording paper
- - 1844199

Tropochromic coating
- - 1880449

Light sensitive tropochromic coating
- - 1897843


Inventors:
Miller, Carl S.
Publication Date:
04/03/1956
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Assignee:
MINNESOTA MINING & MFG
Primary Class:
430/346
Other Classes:
101/DIG.029, 430/348, 430/616, 430/395, 347/224
International Classes:
B41M5/26; G03B27/30; G03B27/02
US Patent References:
2095839Photothermographic composition
2103385Package fabrication
2129242Heat sensitive compositions
2317789Facsimile reception medium
2402631Method for forming heat-sealed articles
2519321Transfer ink
2536048Method of producing a smooth-wrinkle patterned film
Foreign References:
GB379333A