Air freshener

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

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D2304

Patent

active

D02692929

REFERENCES:
patent: D193930 (1962-10-01), Lewis
patent: D234606 (1975-03-01), Gamble
patent: D253549 (1979-11-01), Seager
patent: D262137 (1981-01-01), Hoyt
patent: 2942786 (1960-06-01), Wenner et al.
patent: 3522935 (1970-08-01), Lewis
patent: 3885738 (1975-05-01), Chesmel et al.
patent: 3908905 (1975-09-01), Phillipp et al.
patent: 3993444 (1976-11-01), Brown
patent: 4294778 (1981-10-01), DeLuca
patent: 4301095 (1981-11-01), Mettler et al.

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