1984167

Information

• Patent Grant
• 1984167

• References
• Source

• Patent Number

  1,984,167

• Date Filed

  Not available

• Date Issued

  Tuesday, December 11, 1934
  90 years ago

• CPC

  • G10B3/06 - Valves Sleeves

• US Classifications

  • 084 - Music
  • 984 - Musical instruments