| prov:value
| - The method according to claim 33, 34, 35, 36, 37, 38, 39, 40 or 41, above, further including the step of mounting an arrangement of radiation emitter and detector pairs and circuitry therefor within said second bezel, prior to the step of fitting said second bezel within said first bezel opening, for providing a radiation grid in front of said display screen.
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