Virtual Punched Card Museum - c0179

< Card: c0179 > < Country: Germany > < Type of Organization: commercial > < Special Feature: special > < Card Manufacturer: 3M > < Form No.: MMM-G-030001/ 1211 > < Remark: AHD 6-72, 3M FILMSORT Karte US.Pat.Nr.2.512.106, 2.587.022, with microfilm >