2788698

Information

• Patent Grant
• 2788698

• References
• Source

• Patent Number

  2,788,698

• Date Filed

  Not available

• Date Issued

  Tuesday, April 16, 1957
  67 years ago

• CPC

  • G10C1/00 - General design
  • G10C3/12 - Keyboards Keys
  • Y10S84/21 - Mechanical resonator

• US Classifications

  • 084 - Music