• All sections
• G - Physics
• G03B - Apparatus or arrangements for taking photographs or for projecting or viewing themapparatus or arrangements employing analogous techniques using waves other than optical wavesaccessories therefor
• G03B 31/08 - Associated working of cameras or projectors with sound-recording or sound-reproducing means with fade-in and fade-out effects

Patent holdings for IPC class G03B 31/08

Total number of patents in this class: 1

10-year publication summary

Principal owners for this class