2928231

Information

• Patent Grant
• 2928231

• References
• Source

• Patent Number

  2,928,231

• Date Filed

  Not available

• Date Issued

  Tuesday, March 15, 1960
  64 years ago

• CPC

  • G04B5/14 - acting in both directions

• US Classifications

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