4. Optics: measuring and testing
  5. Photometers
  6. Photoelectric

John D. Spalding

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Method and inspection head apparatus for optically measuring...

Optics: measuring and testing – Dimension – Width or diameter
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Method and system for inspecting manufactured parts and...

Data processing: measuring – calibrating – or testing – Measurement system – Performance or efficiency evaluation
Reexamination Certificate

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Method and system for inspecting manufactured parts and...

Data processing: measuring – calibrating – or testing – Measurement system – Performance or efficiency evaluation
Reexamination Certificate

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Method for estimating thread parameters of a part

Radiant energy – Photocells; circuits and apparatus – Optical or pre-photocell system
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Optical method and system for generating calibration data...

Optics: measuring and testing – Photometers – Photoelectric
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Profile ID: LFUS-PAI-P-2346126

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