Environmental heating and cooling; fluid handling and sanitary e – Heating or cooling – Element or attachment – not elsewhere specified
Patent
1975-09-17
1977-04-26
Burke, Wallace R.
Environmental heating and cooling; fluid handling and sanitary e
Heating or cooling
Element or attachment, not elsewhere specified
D2304, D0708
Patent
active
D02441349
REFERENCES:
patent: D197194 (1963-12-01), Dahlberg
patent: 472187 (1892-04-01), Brand
patent: 1649161 (1927-01-01), Foster
Burke Wallace R.
Cantor Herbert I.
Nucker Christine M.
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