4. Electricity: measuring and testing
  5. Electric lamp or discharge device
  6. Cathode-ray tube

Edward A. Gronka

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Ear canal dryer and method of use thereof

Drying and gas or vapor contact with solids – Process – Treating hollow article
Reexamination Certificate

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Method of checking for electrical frit breakdown in kinescopes a

Electricity: measuring and testing – Electric lamp or discharge device – Cathode-ray tube
Patent

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Profile ID: LFUS-PAI-P-970350

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