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US Patent: 1,393,777
Method of and apparatus for lining furnace fireboxes
Franklin Hardinge - Chicago, IL

USPTO Classifications:
264/30, 264/310

Tool Categories:
industrial furnaces
specialty machines : industrial furnaces

Hardinge Brothers, Inc. - Chicago, IL

Not known to have been produced

Emile J. Bourgeois
Edna V. Gustafson

Patent Dates:
Applied: Sep. 20, 1920
Granted: Oct. 18, 1921

Patent Pictures:
USPTO pdf tiff
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"Vintage Machinery" entry for Hardinge Brothers

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