Yes, those record are too recent to be digitalized. The books are either at the local municipal office or at the archive. It´s possible to get a copy of a record, if you´re a direct relative. You can contact the archive at email@example.com
and ask for information.
Richard´s name is German, it´s possible that he was German as well? If yes, he most probably had to leave Czechoslovakia after WW2 and go to Germany. You said that he came to US on German quota for immigrants, so it´s possible that he lived there for a while.