J. Melvyn Goldenberg

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Upper Saddle River, NJ, US

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Patents Grantslast 30 patents

Information Patent Grant
Keyboard assembly for toy musical instruments
- Patent number 4,240,321
- Issue date Dec 23, 1980
- Proll Molding Company
- J. Melvyn Goldenberg
- G10 - MUSICAL INSTRUMENTS ACOUSTICS
Information Patent Grant
Keyboard assembly for toy musical instruments
- Patent number 4,168,649
- Issue date Sep 25, 1979
- Proll Molding Co., Inc.
- J. Melvyn Goldenberg
- G10 - MUSICAL INSTRUMENTS ACOUSTICS