Electric tooth brush

Details Electric tooth brush Electric tooth brush

1975-06-25

1976-10-12

Roberts, Edward L.

Brushing, scrubbing, and general cleaning

Machines

Brushing

A46B 1302

Patent

active

039848906

ABSTRACT:
This is an electro-mechanical tooth brush having opposed sets of bristles specifically designed to simultaneously brush both the inner and outer surfaces of the teeth by reciprocating one set back and forth, and also having a central hub element for brushing the chewing surfaces of the teeth fixed to and moving with the reciprocating set of bristles.

REFERENCES:
patent: 2282700 (1942-05-01), Bobbroff
patent: 3284829 (1966-11-01), Allen
patent: 3732589 (1973-05-01), Burki

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