Adjustable bedrest
United States Patent 3392412
US Patent References:
/0760730.html
- - 0760730

Inflatable mattress lifters
- - 2769182

Fluid flow control device
- - 3032059

Adjustable bed and control apparatus
- - 3089150

Pump
- - 2419775


Inventors:
Robert, Aymar Julian
Publication Date:
07/16/1968
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Primary Class:
5/660
Other Classes:
5/634, 5/713
International Classes:
A47C20/04; A47C20/00
Foreign References:
DE581796C
FR1422606A