1554652

Information

• Patent Grant
• 1554652

• References
• Source

• Patent Number

  1,554,652

• Date Filed

  Not available

• Date Issued

  Tuesday, September 22, 1925
  99 years ago

• CPC

  • G04F1/04 - by movement or acceleration due to gravity

• US Classifications

  • 200 - Electricity: circuit makers and breakers
  • 968 - Horology