3388904

Information

• Patent Grant
• 3388904

• References
• Source

• Patent Number

  3,388,904

• Date Filed

  Not available

• Date Issued

  Tuesday, June 18, 1968
  56 years ago

• CPC

  • A47C7/30 - with springs meandering in a flat plane
  • A47C23/155 - with combinations of flat springs or link chains with wound spring
  • A47C23/16 - of plane meandering type
  • A47C23/26 - Frames therefor Connecting the springs to the frame
  • A47C31/06 - for attaching flat meandering springs

• US Classifications

  • 267 - Spring devices