4. Electric lamp and discharge devices
  5. Cathode ray tube
  6. Shadow mask, support or shield

Thomas P. DeFranco

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Cathode ray tube neck cleansing-scavenging means and method

Metal working – Barrier layer or semiconductor device making – Barrier layer device making
Patent

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Internal electrical connector for a tension mask tube

Electric lamp and discharge devices – Cathode ray tube – Shadow mask – support or shield
Patent

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Profile ID: LFUS-PAI-P-1752936

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