Eric A. Shifrin

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San Francisco, CA, US

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Patents Grantslast 30 patents

Information Patent Grant
Interval models for the musical octave
- Patent number 7,435,886
- Issue date Oct 14, 2008
- Eric A. Shifrin
- G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS

Patents Applicationslast 30 patents

Information Patent Application
Interval models for the musical octave
- Publication number 20040231494
- Publication date Nov 25, 2004
- Eric A. Shifrin
- G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS