Round flame heater

Environmental heating and cooling; fluid handling and sanitary e – Heating or cooling

Design Patent

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Details

CD23S335000, CD23S378000, CD23S332000

Design Patent

active

D0639919

CLAIM:
The ornamental design for a round flame heater, as shown and described.

REFERENCES:
patent: D267970 (1983-02-01), Gronwick
patent: D271132 (1983-10-01), Boldt et al.
patent: D287617 (1987-01-01), Nakamura
patent: D315598 (1991-03-01), Yamamoto et al.
patent: D322669 (1991-12-01), Yamamoto et al.
patent: D468414 (2003-01-01), Fok
patent: D515187 (2006-02-01), Blateri
patent: D515687 (2006-02-01), Shih
patent: D580028 (2008-11-01), Catrino
patent: D593662 (2009-06-01), Chen
patent: D620569 (2010-07-01), Hall et al.

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