Support deck for mattress or seat

Beds – Sofa bed – Link supported unfolding

Patent

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Details

5188, A47C 1702

Patent

active

055881637

ABSTRACT:
A support deck for a sofa bed having a plurality of support members interconnected at joints such that when a force is applied to one side of the deck the deck will yield but when a force is applied to the opposite side, the deck will be relatively unyieldable.

REFERENCES:
patent: 802415 (1905-10-01), Sleight
patent: 984001 (1911-02-01), Ingraham
patent: 1247024 (1917-11-01), Smith
patent: 1300664 (1919-04-01), Smith
patent: 2365111 (1944-12-01), Russell
patent: 2581611 (1952-01-01), Szulce
patent: 2742653 (1956-04-01), Woller
patent: 2851698 (1958-09-01), Barabas
patent: 4476594 (1984-10-01), McLeod
patent: 4523342 (1985-06-01), Poovey
patent: 4541133 (1985-09-01), Reiss

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