3638254

Information

• Patent Grant
• 3638254

• References
• Source

• Patent Number

  3,638,254

• Date Filed

  Not available

• Date Issued

  Tuesday, February 1, 1972
  53 years ago

• CPC

  • A47C23/0438 - of special shape
  • A47C7/342 - Edge stiffeners

• US Classifications

  • 267 - Spring devices
  • 005 - Beds