3875737

Information

• Patent Grant
• 3875737

• References
• Source

• Patent Number

  3,875,737

• Date Filed

  Not available

• Date Issued

  Tuesday, April 8, 1975
  49 years ago

• CPC

  • G04C17/0075 - by drums or drum-like devices
  • G04C21/18 - by mechanically unlocking an electro-mechanical vibrator

• US Classifications

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