Archive with downloadable PDFs scans of "Manuals and Instructional documents for a wide variety of medical device

Stumbled across an online archive with downloadable PDFs scans of "Manuals and Instructional documents for a wide variety of medical devices."

See here, and enjoy....

Manuals: Medical Devices

https://archive.org/details/manuals_medicaldevices

I wonder if there are any similar manuals out there for more vintage equipment? That has to be a to do item when I have some downtime.