Help understanding the Claims Conference, Hungary database results #hungary #records

Emanuel Blanco

I have found some results of interest to me in the Claims Conference, Hungary database available at JewishGen. The family name is GOTTERER. The DocCode is 50.
From what I understand, the file coded 50 is available at the Central Zionist Archive.
However I can't find the finding aid in the US Holocaust Museum and I find no information about this on the CZA website either.
Is it possible to get access to a file and if yes how ?
Thank you for your help.
Emanuel Blanco