Environmental heating and cooling; fluid handling and sanitary e – Heating or cooling – Element or attachment – not elsewhere specified
Patent
1976-10-07
1979-04-03
Largen, James R.
Environmental heating and cooling; fluid handling and sanitary e
Heating or cooling
Element or attachment, not elsewhere specified
D2301
Patent
active
D02514990
REFERENCES:
patent: D213047 (1968-12-01), Steidley
patent: D218824 (1970-09-01), Lawrence et al.
patent: D230641 (1974-03-01), Mowbray
patent: D241544 (1976-09-01), Whitbread
patent: 3719325 (1973-03-01), Cerva et al.
patent: 3985302 (1976-10-01), Frochaux
Airprint Systems, Inc.
Largen James R.
Patnaude Edmond T.
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