389297

Information

• Patent Grant
• 389297

• References
• Source

• Patent Number

  389,297

• Date Filed

  Not available

• Date Issued

  Tuesday, September 11, 1888
  136 years ago

• CPC

  • B60Q1/1492 - Foot actuated switches
  • H05B37/0209 - the instant of the ignition or of the extinction
  • Y10T307/74 - Switching systems

• US Classifications

  • 315 - Electric lamp and discharge devices: systems
  • 307 - Electrical transmission or interconnection systems