Beds – Sofa bed – Reverting back
Patent
1984-11-27
1987-03-24
Grosz, Alexander
Beds
Sofa bed
Reverting back
5 71, 5433, A61G 706, A47C 2004, A47C 2002
Patent
active
046513655
ABSTRACT:
A portable bed raiser placed under one end of a mattress for adjustably raising and lowering that end of the mattress. The apparatus provides a lightweight, economical alternative to a complex, expensive hospital-type bed. This apparatus is easily compatible with standard beds and can be set up and removed at the convenience of the user.
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patent: 2999920 (1961-09-01), Brown
patent: 3191196 (1965-06-01), Holm
patent: 3201806 (1965-08-01), Hutt
patent: 3981031 (1976-09-01), Schacht
patent: 4183109 (1980-01-01), Howell
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