4. Measuring and testing
  5. Surface and cutting edge testing
  6. Roughness

Mark E. Welland

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Apparatus and method for defining a pattern on a substrate

Photocopying – Projection printing and copying cameras – Focus or magnification control
Reexamination Certificate

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Electromechanical transducer

Measuring and testing – Surface and cutting edge testing – Roughness
Patent

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Sensor

Radiant energy – Photocells; circuits and apparatus – Optical or pre-photocell system
Reexamination Certificate

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Profile ID: LFUS-PAI-P-1726811

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