Environmental heating and cooling; fluid handling and sanitary e – Heating or cooling – Element or attachment – not elsewhere specified
Patent
1981-02-27
1983-09-20
Largen, James R.
Environmental heating and cooling; fluid handling and sanitary e
Heating or cooling
Element or attachment, not elsewhere specified
4415, D2302
Patent
active
D02706598
REFERENCES:
patent: D252403 (1979-07-01), Baron
patent: D252765 (1979-08-01), Ziolkowski
patent: 2761151 (1956-09-01), Ferrando
patent: 2807024 (1957-09-01), Kapp
patent: 4110849 (1978-09-01), La Faver
patent: 4145775 (1979-03-01), Butler
patent: 4221010 (1980-09-01), Young
patent: 4250579 (1981-02-01), Moon
Davies Evan
Marmon John
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