2420220

Information

• Patent Grant
• 2420220

• References
• Source

• Patent Number

  2,420,220

• Date Filed

  Not available

• Date Issued

  Tuesday, May 6, 1947
  77 years ago

• CPC

  • B61D33/0042 - Spring cushions

• US Classifications

  • 297 - Chairs and seats
  • 005 - Beds
  • 267 - Spring devices