Environmental heating and cooling; fluid handling and sanitary e – Heating or cooling – Element or attachment – not elsewhere specified
Patent
1975-07-25
1977-05-10
Burke, Wallace R.
Environmental heating and cooling; fluid handling and sanitary e
Heating or cooling
Element or attachment, not elsewhere specified
D2304
Patent
active
D02442949
REFERENCES:
patent: D163482 (1951-05-01), Reichelderfer et al.
patent: D163483 (1951-05-01), Reichelderfer et al.
patent: D215053 (1969-08-01), Haskin
patent: 1238068 (1917-08-01), Slater et al.
patent: 2626136 (1953-01-01), Krauss
patent: 2769620 (1956-11-01), Davison
patent: 2920717 (1960-01-01), Tuttle et al.
patent: 3583174 (1971-06-01), Logue
Burke Wallace R.
Green William P.
Jones Larry
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