>Clipboards are perishable, can be lost, tampered with, etc.

They sure are easy to set up and use though.

>Don't know what you mean by Siemens, Microsoft & PTC

I mean the corporations that already sell software licenses to factories have AR offerings that integrate with their systems.

Convincing smaller shops to convert from a clipboard mounted to the machine to an app is probably more realistic than a start-up getting conquest sales from these companies.