2392411

Information

• Patent Grant
• 2392411

• References
• Source

• Patent Number

  2,392,411

• Date Filed

  Not available

• Date Issued

  Tuesday, January 8, 1946
  79 years ago

• CPC

  • G10B3/06 - Valves Sleeves

• US Classifications

  • 084 - Music
  • 984 - Musical instruments