Title:
Swimming pool water level control system
United States Patent 2739939
US Patent References:
/1144327.html
- - 1144327

Swimming pool
- - 1563850

Swimming pool
- - 1670094

Circulating water-level control
- - 1800378

Recreation pool
- - 1979623


Inventors:
Leslie, Donald J.
Publication Date:
03/27/1956
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Assignee:
Leslie, Donald J.
Primary Class:
210/127
Other Classes:
137/428, 137/399, 210/167.120, 210/114, 4/509, 4/302, 210/205
International Classes:
E04H4/12; G05D9/02; E04H4/00; G05D9/00
US Patent References:
2162074Nonsiphoning swimming pool treatment system
2502052Water recirculating system for swimming pools
Foreign References:
AU106921B
GB450578A
GB461828A