Cleaning apparatus
United States Patent 2813291
US Patent References:
Scouring device
- - 2140578
Self-propelled machine for handling forgings
- - 2257546
Floor cleaning device
- - 2500840
Scouring device
- - 2140578
Self-propelled machine for handling forgings
- - 2257546
Floor cleaning device
- - 2500840
Inventors:
Wark, Marian E.
Publication Date:
11/19/1957
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Export Citation:
Assignee:
Wark, Marian E.
Primary Class:
Other Classes:
D04/131, 100/907, 15/206
International Classes:
A47L13/022; A47L13/02
Foreign References:
| CH96634A | ||||
| CH206393A | ||||
| GB416819A |