Environmental heating and cooling; fluid handling and sanitary e – Heating or cooling – Element or attachment – not elsewhere specified
Patent
1985-04-30
1987-05-19
Burke, Wallace R.
Environmental heating and cooling; fluid handling and sanitary e
Heating or cooling
Element or attachment, not elsewhere specified
Patent
active
D02899191
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patent: D275222 (1984-08-01), Hoyt
patent: 2642310 (1953-06-01), Meek et al.
patent: 4014501 (1977-03-01), Buckenmayer
patent: 4197271 (1980-04-01), Fenstermaker et al.
Burke Wallace R.
The Drackett Company
Vinson Brian N.
Zeller Charles J.
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