Title:
Swimming pool cleaning apparatus
United States Patent 2919027
US Patent References:
/RE14234.html
- - RE14234

/0396112.html
- - 0396112

/0494728.html
- - 0494728

/1244178.html
- - 1244178

Mining machine
- - 1908179


Inventors:
Blumenfeld, Charles M.
Publication Date:
12/29/1959
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Assignee:
Blumenfeld, Charles M.
Primary Class:
210/167.120
Other Classes:
210/242.100, 134/167R, 134/111, 210/167.160, 15/1.700, 210/525
International Classes:
E04H4/16; E04H4/00
US Patent References:
2330164Subaqueous chemical apparatus
2647639Apparatus for cleaning tanks and the like
2667270Apparatus for filtering and agitating plating solutions
2758967
Foreign References:
GB187904834A