Henry Barclay: Difference between revisions
From Graces Guide
Created page with "1842 Patented the first vitrified emery wheel by pressing a mixture of Stourbridge Clay and emery into a mould and firing it. == See Also == <what-links-here/> == Sources of In..." |
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Latest revision as of 08:00, 9 May 2024
1842 Patented the first vitrified emery wheel by pressing a mixture of Stourbridge Clay and emery into a mould and firing it.
See Also
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