4. Glass manufacturing
  5. Processes
  6. With measuring, sensing, inspecting, indicating, or testing

Barry R. Hill

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Dual path interferometer with varying difference in path length

Optics: measuring and testing – By polarized light examination – With birefringent element
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Method and apparatus for detecting unwanted materials among cull

Glass manufacturing – Processes – With measuring – sensing – inspecting – indicating – or testing
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