Symbol 5991 from IEC 60417 - Title/Meaning: Keyboard Function/description: To indicate a reference to a computer keyboard, e.g. the terminals.
Additional information: 
Published in: 3C/1498/FDIS, 3C/1510/RVD
Own work using: iso.org/obp/graphics/grs/4daaa67c-b844-4e4b-a537-f87508bf1680 200.png
Vectorization:  Mrmw