Foldable mattress
United States Patent 2589579
US Patent References:
/0681573.html
- - 0681573

/1153120.html
- - 1153120


Inventors:
Zel, Slayen
Publication Date:
03/18/1952
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Assignee:
Zel, Slayen
Primary Class:
5/722
International Classes:
A47C27/00
Foreign References:
GB190603311A
GB114920A