Washing – cleaning – or drying machine – Washing – cleaning – or drying machine – Surface treatment – e.g. – floor – street – etc.
Patent
1982-08-30
1984-04-24
Kemper, Catherine E.
Washing, cleaning, or drying machine
Washing, cleaning, or drying machine
Surface treatment, e.g., floor, street, etc.
Patent
active
D02736209
REFERENCES:
patent: D189718 (1961-02-01), Patch
patent: D257845 (1981-01-01), Peabody et al.
patent: 3701177 (1972-10-01), Meyer et al.
patent: 4009500 (1977-03-01), Ashton
Tennant "85" Sweeper Modern Materials Handling May 1961 p. 218.
Berg David W.
Kimzey Paul W.
Larson Warren L.
Kemper Catherine E.
Tennant Company
Wilder Lynn
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