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Stanley A. Grajek

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  • DeKalb, IL, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Piano soundboard and method of making same
    • Patent number 4,391,177
    • Issue date Jul 5, 1983
    • The Wurlitzer Company
    • Stanley A. Grajek
    • B27 - WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL NAILING OR STAPLING MACH...
  • Information Patent Grant

    Piano soundboard and method of making same
    • Patent number 4,361,458
    • Issue date Nov 30, 1982
    • The Wurlitzer Company
    • Stanley A. Grajek
    • B27 - WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL NAILING OR STAPLING MACH...
  • Information Patent Grant

    Piano soundboard
    • Patent number 4,280,389
    • Issue date Jul 28, 1981
    • The Wurlitzer Company
    • George S. Klaiber
    • G10 - MUSICAL INSTRUMENTS ACOUSTICS
  • Information Patent Grant

    Piano soundboard
    • Patent number 4,248,124
    • Issue date Feb 3, 1981
    • The Wurlitzer Company
    • George S. Klaiber
    • G10 - MUSICAL INSTRUMENTS ACOUSTICS