Heat exchange unit

Details Heat exchange unit Heat exchange unit

2006-11-21

2006-11-21

Vinson, Brian N (Department: 2911)

Environmental heating and cooling; fluid handling and sanitary e

Heating or cooling

Domestic water heater or boiler

Design Patent

active

D0532499

CLAIM:
The ornamental design for a heat exchange unit, as shown and described.

REFERENCES:
patent: D139313 (1944-10-01), Landerman
patent: D285248 (1986-08-01), Bloom et al.
patent: D304856 (1989-11-01), Aoki
patent: D309344 (1990-07-01), Ratch et al.
patent: D342125 (1993-12-01), Miller
patent: D415264 (1999-10-01), Thweatt, Jr.

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