3389902

Information

• Patent Grant
• 3389902

• References
• Source

• Patent Number

  3,389,902

• Date Filed

  Not available

• Date Issued

  Tuesday, June 25, 1968
  56 years ago

• CPC

  • H01H5/18 - by flexing of blade springs
  • B29C67/0011 - for shaping plates or sheets
  • F16F1/185 - characterised by shape or design of individual leaves
  • F16F1/322 - Snap-action springs
  • Y10T29/49609 - Spring making

• US Classifications

  • 267 - Spring devices
  • 029 - Metal working
  • 200 - Electricity: circuit makers and breakers