Symbol 5690 from IEC 60417 - Title/Meaning: Ultrasound image, magnification Function/description: To identify the control or the indicator to magnify a selected field of an ultrasound image.
Additional information: 
Published in: Amendment 2, 2002,3C/452/FDIS,62A/228/CDV
Own work using: iso.org/obp/graphics/grs/a44a8010-75b9-4ea2-bdc0-8c4f5cb88641 200.png
Vectorization:  Mrmw