Maurice Martenot

Tireless revisions to the Ondes Martenot were reflected in his patents, sampled here.

1. "Electric Musical Instrument", Maurice Martenot, US Patent 1853630. 1930
2. "Electric Keyboard Musical Instrument", Maurice Martenot, US Patent 1914831. 1931
3. "Electric Musical Instrument", Maurice Martenot, US Patent 1824402, 1933
4. "Electric Keyboard Musical Instrument", Maurice Martenot, US Patent 1914831,1933.
5. "Keyboard Electrical Musical Instrument", Maurice Martenot, US Patent 2562471. 1948
6. "Musical Sound Generating Device", Maurice Martenot, US Patent 2613568. 1948
7. "Keyboard Electric Musical Instrument", Maurice Martenot, US Patent 2562471,1951
8. "Diffuseurs Electro-acoustiques Convenant Particulirement aux Instruments de Musique Electriques ou Electroniques", Maurice Martenot, French Patent FR1004397, 1952