Environmental heating and cooling; fluid handling and sanitary e – Heating or cooling – Element or attachment – not elsewhere specified
Patent
1982-05-17
1984-11-27
Largen, James R.
Environmental heating and cooling; fluid handling and sanitary e
Heating or cooling
Element or attachment, not elsewhere specified
Patent
active
D02765500
REFERENCES:
patent: D270662 (1983-09-01), Scotto
patent: D270941 (1983-10-01), Lin
patent: 3173478 (1965-03-01), Magpen
patent: 4341151 (1982-07-01), Sakamoto
Hardware Age, Feb. 22, 1951, p. 41, top right item.
Industrial Design, Apr. 1954, p. 127, lower left item.
Kouno Shuichi
Nishiwaki Katsuhiko
Watanabe Ken'ichi
Hitachi , Ltd.
Largen James R.
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