Verna M. Leonard

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Fresno, CA, US

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Patents Grantslast 30 patents

Information Patent Grant
Note reading octave isolator
- Patent number 4,404,886
- Issue date Sep 20, 1983
- Verna M. Leonard
- G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS
Information Patent Grant
Musical structural integrator
- Patent number 4,320,690
- Issue date Mar 23, 1982
- Verna M. Leonard
- G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS
Information Patent Grant
Keyboard simulation with vertical inversion indexes
- Patent number 4,295,407
- Issue date Oct 20, 1981
- Verna M. Leonard
- G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS
Information Patent Grant
Octave subdivided diatonic scale organizer
- Patent number 4,254,686
- Issue date Mar 10, 1981
- Verna M. Leonard
- G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS
Information Patent Grant
Chord fingering coordinator
- Patent number 4,041,828
- Issue date Aug 16, 1977
- Verna M. Leonard
- G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS
Information Patent Grant
Chord progression selector
- Patent number 4,002,097
- Issue date Jan 11, 1977
- Verna M. Leonard
- G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS
Information Patent Grant
Left hand chord locator
- Patent number 3,977,293
- Issue date Aug 31, 1976
- Verna M. Leonard
- G10 - MUSICAL INSTRUMENTS ACOUSTICS
Information Patent Grant
Inversion sliderule
- Patent number 3,937,118
- Issue date Feb 10, 1976
- Verna M. Leonard
- G10 - MUSICAL INSTRUMENTS ACOUSTICS