Title:
Sheet material
United States Patent 2214231
Inventors:
Ketter, Grace P.
George, Wagner
Publication Date:
09/10/1940
Export Citation:
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Assignee:
Ketter, Grace P.
George, Wagner
Primary Class:
428/350
Other Classes:
106/146.5, 428/355R, 451/442
International Classes:
B41N1/24; C09J7/04; D21H17/22; B41N1/24; C09J7/04; D21H17/00
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