Title:
MATTRESS
United States Patent 3521311
US Patent References:
Laminated polyurethane foam cushion
- - 3051601

Mattress structure
- - 2859455

Mattress
- - 3419920


Inventors:
Cohen, Paul P.
Publication Date:
07/21/1970
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Assignee:
Cohen, Paul P.
Primary Class:
5/727
Other Classes:
5/740
International Classes:
A47C23/00; A47C27/15; A47C27/14




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