[ Radiotelephony sets; computers; mobile computers; portable computers; cellular phones; smartphones; computer peripheral devices; peripheral device for radiotelephony sets, namely, display in the nature of head-mounted video displays; wearable computers; wearable radiotelephony sets; wearable cellular phones; wearable smartphones; wearable peripheral devices for computers; wearable peripheral devices for radiotelephony sets, namely, display in the nature of head-mounted video displays; weara...