|
AU647912B
|
|
Improvements in electric musical instruments
|
|
GB191219868A
|
|
Improvements relating to Musical Instruments with Electrically Operated Vibratory Sounders.
|
|
GB191316860A
|
|
Improvements in Musical Instruments with Electromagnetically Vibrated Sonorous Bodies.
|
|
GB191219869A
|
|
Improvements relating to Musical Instruments with Electrically Operated Vibratory Sounders.
|
|
GB191219870A
|
|
Improvements in Pulsation Timing Devices for use in Electrically Operated Vibratory Musical Instruments.
|
|
GB190604826A
|
|
Improvements relating to Means for Vibrating Sonorous Bodies in Musical Instruments.
|
|
GB190012982A
|
|
Improvements relating to Impression Surfaces for Printing Presses.
|
|
GB190012981A
|
|
Improvements relating to Impression Surfaces for Printing Presses.
|
|
GB190012980A
|
|
Improvements relating to Impression Surfaces for Printing Presses.
|
|
GB190012983A
|
|
Improvements relating to Impression Surfaces for Printing Presses.
|
|
CA237389A
|
|
Production of sonorous vibrations
|
