Title:
Double hinged inner spring unit
United States Patent 3099843
US Patent References:
/0535367.html
- - 0535367

/0641660.html
- - 0641660

Flexible mattress spring structure
- - 2118297


Inventors:
George, Simon
Publication Date:
08/06/1963
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Assignee:
KAY MFG CORP
Primary Class:
5/250
Other Classes:
5/248
International Classes:
A47C27/00
Foreign References:
AU1447828A