2470148

Information

• Patent Grant
• 2470148

• References
• Source

• Patent Number

  2,470,148

• Date Filed

  Not available

• Date Issued

  Tuesday, May 17, 1949
  76 years ago

• CPC

  • G10B1/04 - electrically operated
  • G10C3/12 - Keyboards Keys

• US Classifications

  • 084 - Music
  • 200 - Electricity: circuit makers and breakers