https://www.computerhistory.org/collections/catalog/X550.85A
Grafacon 1010A Digitizing Tablet - X550.85A - CHM
This item comprises 4 pieces: A: Tablet B: Controller C: Power Supply D: Cables
digitizing tabletgrafaconx55085achm
https://www.epo.org/en/boards-of-appeal/decisions/t950387eu1
T 0387/95 (Combined touch screen and digitizing tablet/PHILIPS) of 12.03.1997