Environmental heating and cooling; fluid handling and sanitary e – Heating or cooling – Element or attachment – not elsewhere specified
Patent
1978-08-15
1981-02-24
Largen, James R.
Environmental heating and cooling; fluid handling and sanitary e
Heating or cooling
Element or attachment, not elsewhere specified
D23 40, 166241, D2301
Patent
active
D02583798
REFERENCES:
patent: D208388 (1967-08-01), Graham
patent: D240428 (1976-07-01), Hoffman
patent: 3292708 (1966-12-01), Mundt
patent: 3806168 (1974-04-01), McGee et al.
patent: 3933203 (1976-01-01), Evans
patent: 4042023 (1977-08-01), Fox
patent: 4088185 (1978-05-01), Carson
patent: 4099564 (1978-07-01), Hutchison
Harpman Webster B.
Largen James R.
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