APPARATUS FOR CLEANING SWIMMING POOLS
United States Patent 3512540

Inventors:
Hughes, Wayne L.
Publication Date:
05/19/1970
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Assignee:
Wayne, Hughes L.
Primary Class:
134/167R
Other Classes:
285/98, 285/276
International Classes:
E04H4/16; E04H4/00; B08B3/02; B08B9/08
US Patent References:
3032044Automatic swimming pool cleaner
3289216Retractable swimming pool cleaner
3372948Rotatable coupling




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