Environmental heating and cooling; fluid handling and sanitary e – Heating or cooling – Element or attachment – not elsewhere specified
Patent
1980-06-06
1982-06-22
Kemper, Catherine E.
Environmental heating and cooling; fluid handling and sanitary e
Heating or cooling
Element or attachment, not elsewhere specified
D2303
Patent
active
D02651211
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patent: 21938 (1859-11-01), Buchanan
patent: 44812 (1864-10-01), Meigs
patent: 90537 (1869-05-01), Helm
patent: D202957 (1965-11-01), Tripp
patent: 1358570 (1920-11-01), Myers
patent: 1532121 (1926-04-01), Chumley
patent: 1850194 (1932-03-01), Allbert
patent: 2725872 (1955-12-01), Richards
patent: 3515122 (1970-06-01), Andrews
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