The mechanized production of Duro-Test light bulbs is filmed as a dance to the tune of the Brandenburg, as choreographed filaments, glass, and metal combine in a dynamic finale. Preserved by the Academy Film Archive in 2013.
1933
1960
1934
1990
1895
1957
1953
2015
1978
1894
2004
2021
2006
1925
2008
2020
