Widex TV-Dex User Instructions page 45

symBols
symbols commonly used by Widex a/s in medical device labelling
(labels/ifU/etc .)
symbol title/Description
manufacturer
the product is produced by the manufacturer whose name
and address are stated next to the symbol . if appropriate,
the date of manufacture may also be stated .
Date of manufacture
the date when the product was manufactured .
Use-by date
the date after which the product is not to be used .
Batch code
the product's batch code (lot or batch identification) .
45