Title:
Vacuum apparatus for water and dirt removal
United States Patent 2726807
US Patent References:
/0993985.html
- - 0993985

/1075300.html
- - 1075300

/1218223.html
- - 1218223

Vacuum cleaner
- - 1918764

Ventilated variable speed power unit
- - 2205975


Inventors:
Lewis, Russell K.
Publication Date:
12/13/1955
View Patent Images:
Assignee:
FINNELL SYSTEM INC
Primary Class:
Other Classes:
261/119.100, 15/320, 55/319, 310/62, 310/60R, 15/50.100, 417/423.200
International Classes:
A47L7/00; A47L11/30; A47L11/29
US Patent References:
2368537Power plant accessory
2380772Centrifugal compressor
2531342Vacuum cleaner