Search
Selected: All

Audio-visual cartridge and combined audio player and visual view

Optics: image projectors – With sound accompaniment – Common picture and sound record carrier system
Patent

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Audio-visual cartridge and player

Optics: image projectors – With sound accompaniment – Common picture and sound record carrier system
Patent

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Audio-visual device

Optics: image projectors – With sound accompaniment – Common picture and sound record carrier system
Patent

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Dual film strip projector

Optics: image projectors – With sound accompaniment – Common picture and sound record carrier system
Patent

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Magazine for slides for the simultaneous projection of pictures

Optics: image projectors – With sound accompaniment – Common picture and sound record carrier system
Patent

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Mechanical sound reproducing means for an audio-visual device

Optics: image projectors – With sound accompaniment – Common picture and sound record carrier system
Patent

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Reset mechanism for an audio-visual device

Optics: image projectors – With sound accompaniment – Common picture and sound record carrier system
Patent

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Synchronized audio visual story-telling toy

Optics: image projectors – With sound accompaniment – Common picture and sound record carrier system
Patent

  [ 0.00 ] – not rated yet Voters 0   Comments 0
  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.