1618757

Information

• Patent Grant
• 1618757

• References
• Source

• Patent Number

  1,618,757

• Date Filed

  Not available

• Date Issued

  Tuesday, February 22, 1927
  98 years ago

• CPC

  • G04C15/0081 - Automatic stabilisation of net frequency with regard to time
  • Y10S70/51 - Light sensitive control means
  • Y10S388/933 - Radiant energy responsive device

• US Classifications

  • 388 - Electricity: motor control systems
  • 070 - Locks
  • 250 - Radiant energy
  • 968 - Horology