1397988

Information

• Patent Grant
• 1397988

• References
• Source

• Patent Number

  1,397,988

• Date Filed

  Not available

• Date Issued

  Tuesday, November 22, 1921
  103 years ago

• CPC

  • G10B3/02 - Blowers

• US Classifications

  • 084 - Music
  • 984 - Musical instruments