3220174

Information

• Patent Grant
• 3220174

• References
• Source

• Patent Number

  3,220,174

• Date Filed

  Not available

• Date Issued

  Tuesday, November 30, 1965
  59 years ago

• CPC

  • G04C17/0025 - by flaps
  • G04B19/205 - by means of sheets

• US Classifications

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