Title:
Adjustable box spring
United States Patent 3059249
US Patent References:
Bed
- - 2107205

Bedspring and the like
- - 2302514

Bed spring gauge
- - 2327829

Hospital bed
- - 2445158

Adjustable spring tensioning of bed springs
- - 2558288


Inventors:
Kamp, Ewald A.
Publication Date:
10/23/1962
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Assignee:
ENGLANDER COMPANY INC
Primary Class:
5/246
Other Classes:
267/89, 5/716, 5/697
International Classes:
A47C31/12; A47C31/00
US Patent References:
2595072Adjustable resiliency bedspring
2804128Variable tension spring
2985895Adjustable box springs
Foreign References:
FR447794A