Gas heater

Details Gas heater Gas heater

1999-10-21

2001-08-07

Bullock, B. J. (Department: 2912)

Environmental heating and cooling; fluid handling and sanitary e

Heating or cooling

Combined heating and cooling or with diverse element

CD23S342000, CD26S051000

Design Patent

active

D0446290

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

REFERENCES:
patent: D. 42178 (1912-02-01), Roy
patent: D. 187490 (1960-03-01), Hammes
patent: D. 325963 (1992-05-01), Anderson
patent: D. 383018 (1997-09-01), Grosfillex
patent: D. 406206 (1999-03-01), Grosfillex
patent: D. 418342 (2000-01-01), Von Gunten et al.
patent: 3251356 (1966-05-01), Prince et al.
patent: 3503379 (1970-03-01), Kuhn et al.

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