MULTITEMPERATURE SWIMMING POOL
United States Patent 3460166

Inventors:
Weber, Karl
Publication Date:
08/12/1969
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Assignee:
Weber, Karl
Primary Class:
4/493
Other Classes:
4/505
International Classes:
E04H4/12; E04H4/14; E04H4/00; E04H3/16
US Patent References:
3207133Swimming pool heater




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