3802300

Information

• Patent Grant
• 3802300

• References
• Source

• Patent Number

  3,802,300

• Date Filed

  Not available

• Date Issued

  Tuesday, April 9, 1974
  51 years ago

• CPC

  • G04D1/041 - for springs of driving mechanisms
  • Y10T29/53626 - Flat spiral spring [e.g., watch or clock type]

• US Classifications

  • 081 - Tools
  • 029 - Metal working
  • 968 - Horology