G03B 31/04
Associated working of cameras or projectors with sound-recording or sound-reproducing means in which sound track is not on, but is synchronised with, a moving-picture film
Name
# Contributions
Last Contribution
Find more entities like G03B 31/04
Use the Golden Query Tool to find similar entities by any field in the Knowledge Graph, including industry, location, and more.
By using this site, you agree to our Terms of Service.