Environmental heating and cooling; fluid handling and sanitary e – Heating or cooling – Element or attachment – not elsewhere specified
Patent
1982-12-13
1986-03-04
Kemper, Catherine E.
Environmental heating and cooling; fluid handling and sanitary e
Heating or cooling
Element or attachment, not elsewhere specified
Patent
active
D02828707
REFERENCES:
patent: D164937 (1951-10-01), Long
patent: D275603 (1984-09-01), Brown
patent: 2719410 (1955-10-01), Deering
patent: 3602006 (1971-08-01), Metcalfe et al.
Benning L.
Novecosky E.
Van Ee D.
Ade Stanley G.
Battison Adrian D.
Del-Air Systems Ltd.
Kemper Catherine E.
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