1688956

Information

• Patent Grant
• 1688956

• References
• Source

• Patent Number

  1,688,956

• Date Filed

  Not available

• Date Issued

  Tuesday, October 23, 1928
  96 years ago

• CPC

  • A47C3/26 - with vertical, or inclined toothed rack; with peg-and-notch mechanism
  • A47C3/265 - with rack-and-pinion gearing
  • A47C7/402 - adjustable in height

• US Classifications

  • 248 - Supports
  • 297 - Chairs and seats