Environmental heating and cooling; fluid handling and sanitary e – Heating or cooling – Element or attachment – not elsewhere specified
Patent
1980-04-22
1982-10-19
Kemper, Catherine E.
Environmental heating and cooling; fluid handling and sanitary e
Heating or cooling
Element or attachment, not elsewhere specified
D2303
Patent
active
D02665808
REFERENCES:
patent: 542281 (1895-07-01), Rogers
patent: 2206398 (1940-07-01), Grimm
A/S Tasso Odense
Kemper Catherine E.
Levy Edward F.
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