David Van Koevering

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Hermitage, TN, US

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Patents Grantslast 30 patents

Information Patent Grant
Electronic music instrument system with musical keyboard
- Patent number 5,908,997
- Issue date Jun 1, 1999
- Van Koevering Company
- Rob C. Arnold
- G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS
Information Patent Grant
Electronic piano having an integrated music stand and touch screen...
- Patent number 5,864,078
- Issue date Jan 26, 1999
- Van Koevering Company
- David Van Koevering
- G10 - MUSICAL INSTRUMENTS ACOUSTICS