Environmental heating and cooling; fluid handling and sanitary e – Heating or cooling – Element or attachment – not elsewhere specified
Patent
1978-06-23
1980-08-05
Kemper, Catherine E.
Environmental heating and cooling; fluid handling and sanitary e
Heating or cooling
Element or attachment, not elsewhere specified
D2303
Patent
active
D02562731
REFERENCES:
patent: D153542 (1949-04-01), Owens et al.
patent: D164613 (1951-09-01), Wahlberg et al.
patent: D201165 (1965-05-01), Briggs
patent: 1730982 (1929-10-01), Pankratz et al.
patent: 2839657 (1958-06-01), Mast
Huggler Peter E.
Notbohm Rex L.
Townsend Donald L.
Gealow Jon Carl
Kemper Catherine E.
McGraw-Edison Company
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