Environmental heating and cooling; fluid handling and sanitary e – Heating or cooling – Element or attachment – not elsewhere specified
Patent
1984-08-01
1987-01-27
Largen, James R.
Environmental heating and cooling; fluid handling and sanitary e
Heating or cooling
Element or attachment, not elsewhere specified
D23 2
Patent
active
D02879972
REFERENCES:
patent: D154966 (1949-08-01), Walsh
patent: D209266 (1967-11-01), Brown
patent: D272262 (1984-01-01), Honma
patent: 2896862 (1959-07-01), Bedo
patent: 3146796 (1964-09-01), Everett
patent: 3833013 (1974-09-01), Leonard
patent: 3952765 (1976-04-01), Kimura
patent: 4388944 (1983-06-01), Honma et al.
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