2158888

Information

• Patent Grant
• 2158888

• References
• Source

• Patent Number

  2,158,888

• Date Filed

  Not available

• Date Issued

  Tuesday, May 16, 1939
  85 years ago

• CPC

  • G04C11/085 - using an electro-motor

• US Classifications

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