3712672

Information

• Patent Grant
• 3712672

• References
• Source

• Patent Number

  3,712,672

• Date Filed

  Not available

• Date Issued

  Tuesday, January 23, 1973
  51 years ago

• CPC

  • A47C1/0246 - by means of screw-and-nut mechanism
  • A47C7/441 - with adjustable elasticity
  • A47C7/443 - with coil springs

• US Classifications

  • 297 - Chairs and seats