Environmental heating and cooling; fluid handling and sanitary e – Heating or cooling – Element or attachment – not elsewhere specified
Patent
1984-06-27
1987-02-10
Largen, James R.
Environmental heating and cooling; fluid handling and sanitary e
Heating or cooling
Element or attachment, not elsewhere specified
Patent
active
D02882310
REFERENCES:
patent: D186301 (1959-10-01), Hurwitz
patent: D202411 (1965-09-01), Niemann
patent: D232638 (1974-09-01), Mather
patent: D238073 (1975-12-01), Ganger
patent: 3548422 (1970-12-01), Byers et al.
patent: 3577577 (1971-05-01), Ruggles et al.
patent: 3673617 (1972-07-01), Schulz, Jr.
Crane & Co.
Largen James R.
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