Phonofilm Progress

As a paper on the technical side of the Phonofilm was read before your Convention at Atlantic City eighteen months ago, we believe it unnecessary to go very deeply into that phase of the subject now. You will perhaps be more interested in the advance made during that period of time.

Print ISSN

0096-6460

Published

1924-10

Content type

Original Research

DOI

10.5594/J14177