Sound and picture system with manual and electrical advance of the film in response to a film deformation
作者： Michael C Supitilov
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lens.org 参考文章(3)
William W Wood, Frederick W Lutz, Method and apparatus for utilizing vibrations ,(1932)
Nachumsohn Irving, Harry H Golden, Method and means for combining pictures with sound ,(1929)
Coutelen, Vidal, Machine parlante combinée avec un projecteur ,(1940)