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

Peter Elfner

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Glass funnel with a nearly rectangular cross-sectioned...

Electric lamp and discharge devices – Cathode ray tube – Envelope
Reexamination Certificate

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Method for, and apparatus for, cleaning tubes

Cleaning and liquid contact with solids – Processes – Hollow work – internal surface treatment
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Profile ID: LFUS-PAI-P-2430306

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