Environmental heating and cooling; fluid handling and sanitary e – Heating or cooling – Element or attachment – not elsewhere specified
Patent
1992-09-08
1995-02-07
Lichtenstein, Lisa P.
Environmental heating and cooling; fluid handling and sanitary e
Heating or cooling
Element or attachment, not elsewhere specified
D12214
Patent
active
D03552527
REFERENCES:
patent: D223218 (1972-03-01), Martens
patent: 2087243 (1937-07-01), Caldwell
patent: 3442220 (1969-05-01), Mottram et al.
patent: 4080096 (1978-03-01), Dawson
patent: 4200597 (1980-04-01), Baum
Charmasson Henri J. A.
Lichtenstein Lisa P.
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