2220577

Information

• Patent Grant
• 2220577

• References
• Source

• Patent Number

  2,220,577

• Date Filed

  Not available

• Date Issued

  Tuesday, November 5, 1940
  84 years ago

• CPC

  • A47C23/16 - of plane meandering type
  • A47C27/067 - of plane meandering type

• US Classifications

  • 005 - Beds
  • 267 - Spring devices