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Model: Hardometer

This page displays all the content on the website associated with the 'Hardometer' model. Numeric models include all prefixes, such as 'Number', 'Mark', 'Size' etc.

Manuals for Model: Hardometer

Print code: P-1981

Firth Hardometer by Thos Firth & John Brown Ltd of Sheffield. Although classed by the makers as a catalogue, the publication givesfull details of the machine's design, its dimensions, principles of operation,