Environmental heating and cooling; fluid handling and sanitary e – Heating or cooling – Element or attachment – not elsewhere specified
Patent
1977-01-13
1978-11-28
Largen, James R.
Environmental heating and cooling; fluid handling and sanitary e
Heating or cooling
Element or attachment, not elsewhere specified
D2301
Patent
active
D02504154
REFERENCES:
patent: D199075 (1964-09-01), Kudlaty
patent: D199139 (1964-09-01), Kudlaty
patent: 2565690 (1951-08-01), Kelelsen
patent: 2669359 (1954-02-01), Mankin
patent: 3283098 (1966-11-01), Bair et al.
patent: 3334754 (1969-08-01), Kudlaty
patent: 4051031 (1977-09-01), Suzuki
Fosdick Dale P.
Rosaen Borje O.
Gifford Ernest I.
Largen James R.
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