4. Radiant energy
  5. Photocells; circuits and apparatus
  6. Optical or pre-photocell system

Spas N. Markov

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Device for determining the reflective characteristics of article

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

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Tobacco sorting method and apparatus

Classifying – separating – and assorting solids – Sorting special items – and certain methods and apparatus for... – Condition responsive means controls separating means
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Profile ID: LFUS-PAI-P-920227

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