B - Operations – Transporting – 24 – B
Patent
B - Operations, Transporting
24
B
51/22
B24B 9/14 (2006.01)
Patent
CA 1322456
ABSTRACT METHOD AND APPARATUS FOR GRINDING LENSES Method and apparatus for edge grinding a lens (2) comprising the grinding of a safety bevel on the lens using a third grinding wheel (7) which contacts the lens under gravity or a resilient bias and is automatically brought into operation once the lens has been ground to the required size and shape.
604982
Berkshire Ophthalmic Laboratories Limited
Fetherstonhaugh & Co.
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