4. Electric lamp and discharge devices
  5. With luminescent solid or liquid material
  6. With gaseous discharge medium

David C. Wentzel

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Amalgam retainer

Electric lamp and discharge devices: systems – Pulsating or a.c. supply – Induction-type discharge device load
Reexamination Certificate

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Closed-loop tubular lamp envelope and method of manufacture

Electric lamp and discharge devices – With luminescent solid or liquid material – With gaseous discharge medium
Patent

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Closed-loop tubular lamp envelope and method of manufacture

Receptacles – Envelope for electric lamp or similar device – Tv tube
Patent

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Profile ID: LFUS-PAI-P-1047128

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