Title:
Swimming pool cleaning aid
United States Patent 3170180


Inventors:
Winston, Milton D.
Stephens, John A.
Application Number:
US25109863A
Publication Date:
02/23/1965
Filing Date:
01/14/1963
Assignee:
MARENGO INV S INC
Primary Class:
Other Classes:
134/167R
International Classes:
E04H4/16
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