Title:
Cleaning sheet
United States Patent 2980941
US Patent References:
/0995904.html
- - 0995904

/1056067.html
- - 1056067

/1143614.html
- - 1143614

Paper with improved printing characteristics
- - 2641557

Pressure responsive record materials
- - 2730457


Inventors:
Miller, Robert E.
Publication Date:
04/25/1961
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Export Citation:
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Assignee:
NCR CO
Primary Class:
15/104.930
Other Classes:
428/321.500, 428/393, 428/392, 264/4.300, 15/209.100, 428/305.500, 428/141, 428/402.220, 264/4.400, 428/402.200, 400/241.200
International Classes:
A47L13/17; A47L13/16