Spring construction
United States Patent 3160894
US Patent References:
/0062248.html
- - 0062248

/0141726.html
- - 0141726

/0833464.html
- - 0833464

Bed-mattress
- - 1371362

Back rest for chairs
- - 1929110


Inventors:
Frey, Louis E.
Publication Date:
12/15/1964
View Patent Images:
Download PDF 3160894 pdf       PDF help
Export Citation:
Click for automatic bibliography generation
Assignee:
Frey, Louis E.
Primary Class:
5/243
Other Classes:
5/720
International Classes:
A47C23/06; A47C23/00
US Patent References:
2560018Combination box spring and mattress
2771129Armrest structure for furniture
3031690Upholstery construction