James Lenger

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Chicago, IL, US

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Patents Grantslast 30 patents

Information Patent Grant
Guitar training device
- Patent number 11,475,786
- Issue date Oct 18, 2022
- STRUM PERFECT LLC
- James Lenger
- G10 - MUSICAL INSTRUMENTS ACOUSTICS
Information Patent Grant
Guitar training device
- Patent number 11,004,354
- Issue date May 11, 2021
- STRUM PERFECT LLC
- James Lenger
- G10 - MUSICAL INSTRUMENTS ACOUSTICS

Patents Applicationslast 30 patents

Information Patent Application
GUITAR TRAINING DEVICE
- Publication number 20220005613
- Publication date Jan 6, 2022
- Strum Perfect LLC
- James Lenger
- G21 - NUCLEAR PHYSICS NUCLEAR ENGINEERING