Brushing – scrubbing – and general cleaning – Machines – Erasing
Patent
1990-03-12
1990-12-25
Sewell, Paul T.
Brushing, scrubbing, and general cleaning
Machines
Erasing
15 353, 15424, 15428, 15429, 15433, 15434, B43L 1900, B43K 2902
Patent
active
049792547
ABSTRACT:
An eraser mover for use with a power eraser comprising mechanical means for sliding the eraser out of its holder by inserting prongs into the eraser and moving the prongs outwardly.
REFERENCES:
patent: 2261314 (1941-11-01), Vogel
patent: 2417925 (1947-03-01), Gerster-Seiler
Patterson M. D.
Sewell Paul T.
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