Environmental heating and cooling; fluid handling and sanitary e – Heating or cooling – Element or attachment – not elsewhere specified
Patent
1979-12-03
1981-12-01
Largen, James R.
Environmental heating and cooling; fluid handling and sanitary e
Heating or cooling
Element or attachment, not elsewhere specified
D2304
Patent
active
D02621380
REFERENCES:
patent: D193930 (1962-10-01), Lewis
patent: D196579 (1963-10-01), Kagan
patent: D238675 (1976-02-01), Schimanski
patent: D250041 (1978-10-01), Schimanski
patent: 1481971 (1924-01-01), Whiting
patent: 1496326 (1924-06-01), Schulte
patent: 3807082 (1974-04-01), Hautmann et al.
Bousgarbies Jacques
Joyaux Yves
Airwick Industries Inc.
Falber Harry
Largen James R.
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