4. Electric lamp and discharge devices
  5. Cathode ray tube
  6. Envelope

Kenichi Umino

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Cathode ray tube device having reinforcing frame

Electric lamp and discharge devices – Cathode ray tube – Envelope
Patent

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Cathode-ray tube display unit and method of making the same

Electric lamp or space discharge component or device manufacturi – Process – Combined – e.g. – with shaping of lamp or device envelope
Patent

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Inwardly convex vacuum envelope

Electric lamp and discharge devices – Cathode ray tube – Envelope
Patent

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Profile ID: LFUS-PAI-P-58064

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