Environmental heating and cooling; fluid handling and sanitary e – Heating or cooling – Element or attachment – not elsewhere specified
Patent
1977-11-28
1981-12-15
Kemper, Catherine E.
Environmental heating and cooling; fluid handling and sanitary e
Heating or cooling
Element or attachment, not elsewhere specified
D2303
Patent
active
D02623072
REFERENCES:
patent: D247305 (1978-02-01), Baxter et al.
patent: 4091793 (1978-05-01), Hermann et al.
Kemper Catherine E.
Laughlin Stanley Ira
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