Environmental heating and cooling; fluid handling and sanitary e – Heating or cooling – Element or attachment – not elsewhere specified
Patent
1984-06-15
1987-04-21
Bullock, B. J.
Environmental heating and cooling; fluid handling and sanitary e
Heating or cooling
Element or attachment, not elsewhere specified
Patent
active
D02894297
REFERENCES:
patent: D194861 (1963-03-01), Hoffinger
patent: 3012676 (1961-12-01), Engelsberg
patent: 3616609 (1971-11-01), Soares de Melo
patent: 3920552 (1975-11-01), Elkern
patent: 4144167 (1979-03-01), Burkett et al.
Bullock B. J.
Vinson Brian N.
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