Environmental heating and cooling; fluid handling and sanitary e – Heating or cooling – Element or attachment – not elsewhere specified
Patent
1984-08-09
1986-11-25
Burke, Wallace R.
Environmental heating and cooling; fluid handling and sanitary e
Heating or cooling
Element or attachment, not elsewhere specified
Patent
active
D02869063
REFERENCES:
patent: D239172 (1976-03-01), Berthoud
patent: 3904116 (1975-09-01), Jones et al.
patent: 3993245 (1976-11-01), Smith
Hudson "Perfection Sprayer", item D, p. 21, Hardware Age, Sep. 1983.
Melnor "Spray Safe", p. 79, Hardware Age, Nov. 1980.
Burke Wallace R.
Delta Buildings Products Limited
Vinson Brian N.
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