2787928

Information

• Patent Grant
• 2787928

• References
• Source

• Patent Number

  2,787,928

• Date Filed

  Not available

• Date Issued

  Tuesday, April 9, 1957
  67 years ago

• CPC

  • G10B3/08 - Pipes

• US Classifications

  • 084 - Music
  • 114 - Ships
  • 984 - Musical instruments