Environmental heating and cooling; fluid handling and sanitary e – Heating or cooling – Element or attachment – not elsewhere specified
Patent
1982-08-20
1986-01-21
Kemper, Catherine E.
Environmental heating and cooling; fluid handling and sanitary e
Heating or cooling
Element or attachment, not elsewhere specified
D23127
Patent
active
D02822750
REFERENCES:
patent: D244032 (1977-04-01), Deetz et al.
patent: 3124197 (1964-03-01), Funk
patent: 4078602 (1978-03-01), Richer
patent: 4342359 (1982-08-01), Baker
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