Cerium and terbium activated luminescent material and mercury vapor discharge lamp containing the same

Assignee

• U.S. Philips

Inventors

• Judicus M. P. J. Verstegen (3 patents)
• Johannus G. Verlijsdonk (10 patents)
• Emiel P. J. de Meester (4 patents)
• Willebrordus H. M. M. Van de Spijker (5 patents)
• Johannes G. Verriet (4 patents)

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