Portable heater

Details Portable heater Portable heater

1991-07-15

1992-11-03

Burke, Wallace R.

Environmental heating and cooling; fluid handling and sanitary e

Heating or cooling

Portable

Patent

active

D03307565

REFERENCES:
patent: D201165 (1965-05-01), Briggs
patent: D247045 (1978-01-01), Briggs
patent: D264374 (1982-05-01), Briggs et al.
patent: 3256003 (1966-06-01), Briggs
patent: 3706446 (1972-12-01), Briggs
patent: 3794461 (1984-02-01), Brazee
patent: 4081238 (1978-03-01), Briggs et al.
patent: 4089642 (1978-05-01), Briggs et al.
patent: 4201544 (1980-05-01), Briggs et al.
patent: 4313417 (1982-02-01), Briggs et al.
patent: 4443187 (1984-04-01), Shaftner et al.
Grainger's Spring '86 Cat., pp. 1177, Oil-Fired Heater, No. 2E510, top left side of page.
Lawn-Boy Porta-Heat brochure, form No. 215773, copyright 1989 to Lawn-Boy Inc.

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