olemus
tahvelarvutile lisatav tugimapina kujundatud klaviatuur
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an accessuary for tablets: a tablet case designed as a stand with the keyboard

näiteid
https://assets.logitech.com/assets/55470/vogue-10-keyboard-folio-gallery.png

https://duckduckgo.com/?q=keyboard+folio&t=h_&iax=images&ia=images