2538832

Information

• Patent Grant
• 2538832

• References
• Source

• Patent Number

  2,538,832

• Date Filed

  Not available

• Date Issued

  Tuesday, January 23, 1951
  74 years ago

• CPC

  • G10B3/06 - Valves Sleeves

• US Classifications

  • 084 - Music
  • 984 - Musical instruments