Automatic scrub brush

Details Automatic scrub brush Automatic scrub brush

1990-05-23

1993-05-25

Burke, Wallace R.

Brushware

Powered

Rotary brush

Patent

active

D03357708

REFERENCES:
patent: D4501 (1870-12-01), Annis
patent: D27010 (1897-05-01), Mason
patent: D327146 (1992-06-01), Miller
patent: 1049650 (1913-01-01), Benjamin
patent: 1633128 (1927-06-01), Richman
patent: 2556003 (1951-06-01), Sandel et al.
patent: 3236275 (1966-02-01), Smith
patent: 3407431 (1968-10-01), Melnik
patent: 3472490 (1969-10-01), Fitzhugh
patent: 3862461 (1975-01-01), Bucklitzsch
patent: 3921245 (1975-11-01), Clark
patent: 4025982 (1977-05-01), Palmer
patent: 4245366 (1981-01-01), Aarnal
patent: 4627127 (1986-12-01), Dupre
patent: 5033155 (1991-07-01), Klotz

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