3550927

Information

• Patent Grant
• 3550927

• References
• Source

• Patent Number

  3,550,927

• Date Filed

  Not available

• Date Issued

  Tuesday, December 29, 1970
  54 years ago

• CPC

  • A47C7/287 - with combinations of different types flat type tensioned springs

• US Classifications

  • 267 - Spring devices