Sheffield Hollow Drill Steel Co: Difference between revisions
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1960 Tipped steels and bits.<ref>* Mining Year Book 1960. Published by Walter E. Skinner. Advert p757</ref> | 1960 Tipped steels and bits.<ref>* Mining Year Book 1960. Published by Walter E. Skinner. Advert p757</ref> | ||
1961 Acquired by [[Edgar Allen and Co]]<ref> The Times, Aug 03, 1962</ref> | |||
== See Also == | == See Also == | ||
Latest revision as of 18:17, 3 January 2016
of Carbrook Rolling Mills, Sheffield 9
1960 Tipped steels and bits.[1]
1961 Acquired by Edgar Allen and Co[2]
See Also
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