Three-circuit heat exchanger

Details Three-circuit heat exchanger Three-circuit heat exchanger

2011-04-05

2011-04-05

Nelson, T. Chase (Department: 2914)

Environmental heating and cooling; fluid handling and sanitary e

Heating or cooling

Domestic water heater or boiler

CD23S330000

Design Patent

active

D0635652

CLAIM:
The ornamental design for three-circuit heat exchanger, as shown and described.

REFERENCES:
patent: D84788 (1931-08-01), Mertzanoff
patent: D85807 (1931-12-01), Brabbee
patent: 4011905 (1977-03-01), Millard
patent: 4815534 (1989-03-01), Fuerschbach
patent: 4987955 (1991-01-01), Bergqvist et al.
patent: 6179051 (2001-01-01), Ayub
patent: 7424908 (2008-09-01), Blomgren
patent: D597184 (2009-07-01), De'Longhi
patent: D601235 (2009-09-01), De'Longhi
patent: D601236 (2009-09-01), De'Longhi
patent: D624166 (2010-09-01), Zanolin et al.
patent: D626640 (2010-11-01), De'Longhi
patent: D627042 (2010-11-01), De'Longhi

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