Environmental heating and cooling; fluid handling and sanitary e – Heating or cooling – Element or attachment – not elsewhere specified
Patent
1978-10-24
1980-09-23
Largen, James R.
Environmental heating and cooling; fluid handling and sanitary e
Heating or cooling
Element or attachment, not elsewhere specified
D24 38, D2302
Patent
active
D02570580
REFERENCES:
patent: D226405 (1973-02-01), Jacuzzi
patent: D229780 (1973-11-01), Mollerstedl
patent: D230021 (1974-01-01), Primault
patent: D244292 (1977-05-01), Ridgeway
patent: 1445243 (1923-02-01), Spaleek
patent: 3736924 (1973-06-01), Jacuzzi et al.
Knoeller William A.
Largen James R.
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