2150516

Information

• Patent Grant
• 2150516

• References
• Source

• Patent Number

  2,150,516

• Date Filed

  Not available

• Date Issued

  Tuesday, March 14, 1939
  85 years ago

• CPC

  • G04C3/042 - using mechanical coupling

• US Classifications

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