DIN 15578-2:1978-07 Length-measuring of perforated motion-picture films and magnetic tapes; tabels of running times 1 to 60 s in relation to film length
1978DIN 15578-2:1978-07 Length-measuring of perforated motion-picture films and magnetic tapes; tabels of running times 1 to 60 s in relation to film length
1978DIN 15578-2:1978 Length-measuring of perforated motion-picture films and magnetic tapes; tabels of running times 1 to 60 s in relation to film length