2801371

Information

• Patent Grant
• 2801371

• References
• Source

• Patent Number

  2,801,371

• Date Filed

  Not available

• Date Issued

  Tuesday, July 30, 1957
  67 years ago

• CPC

  • G10B3/12 - Keys or keyboards Manuals

• US Classifications

  • 361 - Electricity: electrical systems and devices
  • 084 - Music
  • 200 - Electricity: circuit makers and breakers
  • 335 - Electricity: magnetically operated switches, magnets, and electromagnets