Difference between revisions of "Umpherston and Co"
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Umpherston & Co of Bowershall Engine Works, Leith | Umpherston & Co of Bowershall Engine Works, Leith | ||
1886 Gold medal for invention of patent rag engine for paper pulp | |||
1886 ‘Umpherston’s Rag Engine’, a machine for producing rag pulp, presumably <ref>‘The Engineer’ 5th November 1886 </ref> | |||
== See Also == | == See Also == |