Environmental heating and cooling; fluid handling and sanitary e – Heating or cooling – Element or attachment – not elsewhere specified
Patent
1983-08-29
1985-11-26
Kemper, Catherine E.
Environmental heating and cooling; fluid handling and sanitary e
Heating or cooling
Element or attachment, not elsewhere specified
D231383
Patent
active
D02815273
REFERENCES:
patent: 4181117 (1980-01-01), Hannebaum
patent: 4273096 (1981-06-01), Hannebaum
Robert Jos. Ehmke, Corner Fireplace Doors 1982 as illustrated in Exhibit 1.
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