Washing – cleaning – or drying machine – Laundering – cleaning – or drying tools or implements – Carpet sweeper
Patent
1987-11-18
1991-05-21
Burke, Wallace R.
Washing, cleaning, or drying machine
Laundering, cleaning, or drying tools or implements
Carpet sweeper
Patent
active
D03170675
REFERENCES:
patent: 2216185 (1940-10-01), Cummins
patent: 3034163 (1962-05-01), Stevens et al.
patent: 3268936 (1966-08-01), Fukuba
patent: 4498207 (1985-02-01), Rosendall
patent: 4793646 (1988-12-01), Michaud, Jr.
patent: 4815157 (1989-03-01), Tsuchiya
Burke Wallace R.
Kabushiki Kaisha Hoky
Tabor Lavone D.
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