4. Optics: measuring and testing
  5. Egg candling
  6. Photoelectric

Ian R. Summers

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Method and apparatus for grading shell eggs

Optics: measuring and testing – Egg candling – Photoelectric
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Sound level monitoring apparatus

Communications: electrical – Land vehicle alarms or indicators – Internal alarm or indicator responsive to a condition of the...
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Profile ID: LFUS-PAI-P-1344493

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