John J. Phelan

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Stoneham, MA, US

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Patents Grantslast 30 patents

Information Patent Grant
Flute tubing of laminated metal including a bonded layer of preciou...
- Patent number 4,962,007
- Issue date Oct 9, 1990
- Verne Q. Powell Flutes, Inc.
- John J. Phelan
- G10 - MUSICAL INSTRUMENTS ACOUSTICS