3306152

Information

• Patent Grant
• 3306152

• References
• Source

• Patent Number

  3,306,152

• Date Filed

  Not available

• Date Issued

  Tuesday, February 28, 1967
  59 years ago

• CPC

  • G10B3/12 - Keys or keyboards Manuals
  • G10C3/125 - Materials or treatment of materials for the manufacturing of keys

• US Classifications

  • 084 - Music
  • 984 - Musical instruments
  • D17 - Musical instruments