3604027

Information

• Patent Grant
• 3604027

• References
• Source

• Patent Number

  3,604,027

• Date Filed

  Not available

• Date Issued

  Tuesday, September 14, 1971
  53 years ago

• CPC

  • A47C23/043 - using wound springs
  • A47C31/003 - Magnets
  • Y10S5/906 - with magnetic means
  • Y10S5/936 - with adjustable firmness comprising springs

• US Classifications

  • 005 - Beds
  • 267 - Spring devices
  • 297 - Chairs and seats