Foldable dental chair

Chairs and seats – Collapsible chair; i.e. – relatively folding bottom – back,... – With means to hold chair in plural operative configurations

Patent

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Details

297 30, 297 35, A47C 400

Patent

active

043678947

ABSTRACT:
A lightweight portable dental examining chair constructed from a series of panels hingedly joined in triangular patterns to form a rigid structure with an adjustable position backrest and a pair of sling-like armrests. A single horizontal adjustment on the base of the chair varies the tilt angle of the backrest while retaining the head of the patient in the same relative horizontal position.

REFERENCES:
patent: 271596 (1883-02-01), Browne
patent: 849584 (1907-04-01), Van Valkenburg
patent: 1963708 (1934-06-01), Marvin
patent: 2344729 (1944-03-01), Ralston
patent: 2520094 (1950-08-01), Hand

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