Fan

Environmental heating and cooling; fluid handling and sanitary e – Heating or cooling – Element or attachment – not elsewhere specified

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D02812770

REFERENCES:
patent: D135211 (1943-03-01), Weber
patent: D167759 (1952-09-01), McFarland
patent: D174930 (1955-06-01), Tateishi
patent: D207361 (1967-04-01), Bruns
patent: D253965 (1980-01-01), Ehrentraut-Jones
patent: D254566 (1980-03-01), Cummins
patent: D276551 (1984-11-01), Morooka
patent: 2345516 (1944-03-01), Weber
patent: 2950859 (1960-08-01), Kirk
patent: 2968457 (1961-01-01), Krauss
patent: 4341151 (1982-07-01), Sakamoto

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