Environmental heating and cooling; fluid handling and sanitary e – Heating or cooling – Element or attachment – not elsewhere specified
Patent
1978-04-10
1980-07-01
Kemper, Catherine E.
Environmental heating and cooling; fluid handling and sanitary e
Heating or cooling
Element or attachment, not elsewhere specified
D2303
Patent
active
D02557100
REFERENCES:
patent: D191999 (1961-12-01), Haralson
patent: D247718 (1978-04-01), Peterman
patent: D250541 (1978-12-01), Chinn et al.
patent: D251501 (1979-04-01), Peterman
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