1698812

Information

• Patent Grant
• 1698812

• References
• Source

• Patent Number

  1,698,812

• Date Filed

  Not available

• Date Issued

  Tuesday, January 15, 1929
  96 years ago

• CPC

  • B61L13/045 - using separated rail contacts, pedals or similar
  • Y10S200/20 - Sound and vibration operated

• US Classifications

  • 340 - Communications: electrical
  • 200 - Electricity: circuit makers and breakers