Swimming pool cover
United States Patent 2870454

Inventors:
Schippert, Florence J.
Lawser, Mary L.
Publication Date:
01/27/1959
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Assignee:
Schippert, Florence J.
Lawser, Mary L.
Primary Class:
4/503
Other Classes:
160/368.100, 160/40, 5/498, 210/167.100
International Classes:
E04H4/10; E04H4/00
US Patent References:
2612947Resiliently expansive window closure
2646118Snow shield for motorcar windshields
2754900Safety pool cover