3745874

Information

• Patent Grant
• 3745874

• References
• Source

• Patent Number

  3,745,874

• Date Filed

  Not available

• Date Issued

  Tuesday, July 17, 1973
  51 years ago

• CPC

  • G10B1/08 - of harmoniums
  • G10C3/12 - Keyboards Keys

• US Classifications

  • 084 - Music