Environmental heating and cooling; fluid handling and sanitary e – Heating or cooling – Air treatment
Patent
1987-08-06
1989-02-14
Burke, Wallace R.
Environmental heating and cooling; fluid handling and sanitary e
Heating or cooling
Air treatment
D23377
Patent
active
D02998580
REFERENCES:
patent: D265681 (1982-08-01), Kan
patent: 3061717 (1962-10-01), Barrett
patent: 4428032 (1984-01-01), Workman
Burke Wallace R.
Vinson Brian N.
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