Environmental heating and cooling; fluid handling and sanitary e – Heating or cooling – Element or attachment – not elsewhere specified
Patent
1979-05-21
1981-12-01
Kemper, Catherine E.
Environmental heating and cooling; fluid handling and sanitary e
Heating or cooling
Element or attachment, not elsewhere specified
D2303
Patent
active
D02621355
REFERENCES:
patent: D250660 (1978-12-01), Choate
patent: D250833 (1979-01-01), Loftis et al.
patent: D258004 (1981-01-01), Bullard et al.
Kemper Catherine E.
Shaffer Ralph
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