Environmental heating and cooling; fluid handling and sanitary e – Heating or cooling – Element or attachment – not elsewhere specified
Patent
1981-06-29
1983-01-25
Kemper, Catherine E.
Environmental heating and cooling; fluid handling and sanitary e
Heating or cooling
Element or attachment, not elsewhere specified
D2303
Patent
active
D02677415
REFERENCES:
patent: D259275 (1981-05-01), Berryhill
patent: D262308 (1981-12-01), Christopher
patent: D263492 (1982-03-01), Schaafsma
Albertsen Peter S.
Geiter Robert A.
Powell Robert A.
Jamestown Group
Kemper Catherine E.
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