Environmental heating and cooling; fluid handling and sanitary e – Heating or cooling – Element or attachment – not elsewhere specified
Patent
1990-09-19
1993-04-13
Burke, Wallace R.
Environmental heating and cooling; fluid handling and sanitary e
Heating or cooling
Element or attachment, not elsewhere specified
Patent
active
D03348016
REFERENCES:
patent: D92092 (1934-04-01), Juestrich
patent: 2282946 (1942-05-01), De Roo
patent: 2569902 (1951-10-01), Rienau et al.
patent: 2999431 (1961-09-01), Mitchell
patent: 4686892 (1987-08-01), Foster
Burke Wallace R.
Gilden Leon
Lich34stein Lisa
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