How to change OEM vendor info?

Running: cat /sys/devices/virtual/dmi/id/{sys_vendor,chassis_vendor,product_name} produces the output:

To Be Filled By O.E.M.
To Be Filled By O.E.M.
To Be Filled By O.E.M.

How would I change these values? I know it can be done through the registry in Windows, so hopefully there's a similarly simple way in Linux. Edit: I've tried changing the files with sudoedit, but they're locked for editing (like most of the /sys/ directory, from what I understand). There are a couple ways to accomplish this in Windows, but I haven't found any information online about how to edit these values in Linux.