Environmental heating and cooling; fluid handling and sanitary e – Heating or cooling – Element or attachment – not elsewhere specified
Patent
1983-03-18
1985-11-19
Largen, James R.
Environmental heating and cooling; fluid handling and sanitary e
Heating or cooling
Element or attachment, not elsewhere specified
Patent
active
D02814501
REFERENCES:
patent: D101446 (1936-10-01), Dreyfuss et al.
patent: D202410 (1965-09-01), Sundberg et al.
patent: D208762 (1967-10-01), Laveno
patent: D261929 (1981-11-01), Primault
patent: 1406030 (1922-02-01), Kelly
patent: 1676035 (1928-07-01), Lehnert
patent: 3813706 (1974-06-01), Williams
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