Scrubbing machine
United States Patent 2555822
US Patent References:
/0042287.html
- - 0042287

/0905190.html
- - 0905190

/1116788.html
- - 1116788

/1294881.html
- - 1294881

Road-surfacing machine
- - 1488728


Inventors:
Conway, Smith Ralph
Publication Date:
06/05/1951
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Assignee:
Conway, Smith Ralph
Primary Class:
15/50.100
Other Classes:
239/146, 237/12.30B, 222/146.400
International Classes:
E01H1/05; E01H1/00
US Patent References:
1550102Floor-polishing machine
1707575Floor-polishing machine
1743245Apparatus for spraying liquids
1773992Floor polishing and scrubbing machine
2205249Cleaning machine
2252269Waxing machine