Environmental heating and cooling; fluid handling and sanitary e – Heating or cooling – Element or attachment – not elsewhere specified
Patent
1984-04-23
1987-03-17
Kemper, Catherine E.
Environmental heating and cooling; fluid handling and sanitary e
Heating or cooling
Element or attachment, not elsewhere specified
D21134
Patent
active
D02888440
REFERENCES:
patent: D269698 (1983-07-01), Crawford
Kemper Catherine E.
Smith Michael C.
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