1936720

Information

• Patent Grant
• 1936720

• References
• Source

• Patent Number

  1,936,720

• Date Filed

  Not available

• Date Issued

  Tuesday, November 28, 1933
  91 years ago

• CPC

  • A47C23/057 - Hangers or supports for fastening spring units to frame
  • A47C23/12 - using tensioned springs

• US Classifications

  • 267 - Spring devices