Environmental heating and cooling; fluid handling and sanitary e – Heating or cooling – Element or attachment – not elsewhere specified
Patent
1983-10-03
1986-10-21
Largen, James R.
Environmental heating and cooling; fluid handling and sanitary e
Heating or cooling
Element or attachment, not elsewhere specified
Patent
active
D02863235
REFERENCES:
patent: D164983 (1951-10-01), Crook
patent: 3908906 (1975-09-01), Crowle et al.
patent: 4154398 (1979-05-01), Gualandi
patent: 4374571 (1983-02-01), Hirvela
Largen James R.
S. C. Johnson & Son Inc.
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