Mechanics at GE Aviation used AR smart glasses in assembling engines, reducing errors and increasing efficiency of up to 12 percent.
http://www.zdnet.com/article/why-ges-use-of-google-glass-marks-a-turning-point-for-ar/

Workers at DHL Supply Chain were equipped with AR glasses for picking items in a warehouse and improved productivity by 15 percent.
http://www.shacknews.com/article/100963/ar-glasses-improve-order-picking-efficiency-for-dhl-supply-chain

A project will provide engineers with AR displays in hope of replacing paper or handheld devices and provide real time access to data, enabling greater collaboration between teams and partners.
https://www.theengineer.co.uk/augmented-reality-construction/