Title: Furnace temperature control system

Abstract: Temperature control system for furnaces used in heat-treating metallic articles, such as boronizing steel.

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Inventors: Biddulph, Richard Hampton (Worcester Park, EN)

Application Number: 524839
Filing Date: 1974-11-18
Publication_date: 1976-04-27
Assignee: United States Borax & Chemical Corporation (Los Angeles, CA)
Primary Class(es): 236/15R 219/491, 236/15BB, 236/46R
Other Classes:
US Patent Ref:

2118642	May, 1938	Flynn et al.	236/46.
3127498	Mar, 1964	Gould et al.	219/491.
3370120	Feb, 1968	Lasch et al.	236/15.

Other Refs:
Primary Examiner: Wayner, William E.
Assistant Examiner:
Attorney: Thornton; James R.