1818598

Information

• Patent Grant
• 1818598

• References
• Source

• Patent Number

  1,818,598

• Date Filed

  Not available

• Date Issued

  Tuesday, August 11, 1931
  93 years ago

• CPC

  • A47C20/027 - Back supports
  • A47C20/046 - by means of a rack-and-pinion or like gearing mechanism

• US Classifications

  • 005 - Beds