Dental chair

Details Dental chair Dental chair

1981-05-18

1984-06-26

Lyddane, William E.

Chairs and seats

Movable bottom

Tiltable

297 83, 297361, A47C 1032

Patent

active

044562977

ABSTRACT:
A dental chair has its backrest connected to the seat by a scissor linkage arrangement which effects the moving together of the contiguous portions of the backrest and seat concurrently with movement of the backrest from an upright to a reclined position.

REFERENCES:
patent: 2746520 (1956-05-01), Ducrot
patent: 2925852 (1960-02-01), Lorenz
patent: 3865432 (1975-02-01), Rogers, Jr. et al.
patent: 4200332 (1980-04-01), Branning

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