Electric toothbrush

Details Electric toothbrush Electric toothbrush

1978-03-01

1979-08-07

Roberts, Edward L.

Brushing, scrubbing, and general cleaning

Machines

Brushing

200 1V, 200 6152, 200153A, A46B 1302

Patent

active

041633008

ABSTRACT:
An electric toothbrush consisting of an elongated body member having a cylindrical brush mounted coaxially therewith at one end thereof, and driven rotatably by a reversible electric motor carried in the handle, and having an automatic reversing switch responsive to the position in which the handle is held to cause rotation of the brush such that its bristles move in a direction from the gum line toward the crowns of the teeth.

REFERENCES:
patent: 2279982 (1942-04-01), Glynn
patent: 2310626 (1943-02-01), Gold
patent: 2618797 (1952-11-01), Grover
patent: 3161899 (1964-12-01), Poizat

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