3642321

Information

• Patent Grant
• 3642321

• References
• Source

• Patent Number

  3,642,321

• Date Filed

  Not available

• Date Issued

  Tuesday, February 15, 1972
  52 years ago

• CPC

  • B60N2/4826 - using elastic materials

• US Classifications

  • 297 - Chairs and seats
  • 248 - Supports