Environmental heating and cooling; fluid handling and sanitary e – Heating or cooling – Element or attachment – not elsewhere specified
Patent
1981-06-17
1983-12-06
Largen, James R.
Environmental heating and cooling; fluid handling and sanitary e
Heating or cooling
Element or attachment, not elsewhere specified
D2301
Patent
active
D02717042
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patent: D65301 (1924-07-01), Ross
patent: D185503 (1959-06-01), Kohler
patent: D193601 (1962-09-01), Zeigler
patent: D193757 (1962-10-01), Armstrong
patent: D200754 (1965-03-01), Landell
patent: D204441 (1966-04-01), Harudy et al.
patent: D265230 (1982-06-01), Paul
patent: D265231 (1982-06-01), Paul
patent: 3779278 (1973-12-01), Hill
Domestic Engineering, Sep. 1961, bottom left item.
Largen James R.
Paul Associates Inc.
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