Brushware – Powered – Rotary brush
Patent
1991-05-09
1994-06-07
Burke, Wallace R.
Brushware
Powered
Rotary brush
Patent
active
D03475239
REFERENCES:
patent: 2287725 (1942-06-01), Conte
patent: 3188674 (1965-06-01), Hobbs
patent: 3290711 (1966-12-01), Swanson
patent: 4550466 (1985-11-01), Schmitz
patent: 4573231 (1986-03-01), Stocksiefen et al.
patent: 4920600 (1990-05-01), Reinhart
Burke Wallace R.
Gernstein Terry M.
Tabor Lavone D.
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