3878673

Information

• Patent Grant
• 3878673

• References
• Source

• Patent Number

  3,878,673

• Date Filed

  Not available

• Date Issued

  Tuesday, April 22, 1975
  49 years ago

• CPC

  • G04B9/005 - by optical indication of the amount of winding
  • G04B5/24 - Protecting means preventing overwinding

• US Classifications

  • 368 - Horology: time measuring systems or devices
  • 968 - Horology