DIN 15578-3:1978-07 Length-measuring of perforated motion-picture films and magnetic tapes; tables of running times 1 to 120 min in relation to film length
1978DIN 15578-3:1978-07 Length-measuring of perforated motion-picture films and magnetic tapes; tables of running times 1 to 120 min in relation to film length
1978DIN 15578-3:1978 Length-measuring of perforated motion-picture films and magnetic tapes; tables of running times 1 to 120 min in relation to film length