Environmental heating and cooling; fluid handling and sanitary e – Heating or cooling – Element or attachment – not elsewhere specified
Patent
1983-05-05
1985-08-06
Kemper, Catherine E.
Environmental heating and cooling; fluid handling and sanitary e
Heating or cooling
Element or attachment, not elsewhere specified
D231383
Patent
active
D02800128
REFERENCES:
patent: 2814287 (1957-11-01), Shults
patent: 3459173 (1969-08-01), Lydle
patent: 3517660 (1970-06-01), Springer et al.
patent: 3870032 (1975-03-01), Lydle et al.
Kemper Catherine E.
Wilkening Manufacturing Company
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