Structure of motorized toothbrush with serving period indication

Details Structure of motorized toothbrush with serving period indication Structure of motorized toothbrush with serving period indication

1990-06-01

1991-12-17

Hornsby, Harvey C.

Brushing, scrubbing, and general cleaning

Machines

Brushing

151671, 151761, 151766, 116298, 116308, A46B 1302

Patent

active

050724770

ABSTRACT:
A motorized toothbrush, which comprises a serving period indicating ring adjustably mounted on a brush handle and secured between a brush head and a power unit for the indication of the month a brand-new brush begins to use so that one can easily identify if a brush has been over-used.

REFERENCES:
patent: 1544479 (1925-06-01), Penn
patent: 1553258 (1925-09-01), Moore
patent: 2215465 (1940-09-01), Ehrlich
patent: 3400417 (1968-09-01), Moret
patent: 4466150 (1984-08-01), Jurt
patent: 4592109 (1986-06-01), Borea

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