1490136

Information

• Patent Grant
• 1490136

• References
• Source

• Patent Number

  1,490,136

• Date Filed

  Not available

• Date Issued

  Tuesday, April 15, 1924
  100 years ago

• CPC

  • A47C23/05 - Frames therefor Connecting the springs to the frame; Interconnection of springs
  • A47C23/0507 - using tensioned spiral springs

• US Classifications

  • 005 - Beds