1577900

Information

• Patent Grant
• 1577900

• References
• Source

• Patent Number

  1,577,900

• Date Filed

  Not available

• Date Issued

  Tuesday, March 23, 1926
  98 years ago

• CPC

  • H01T13/48 - having means for rendering sparks visible
  • Y10T137/8359 - Inspection means
  • Y10T137/8376 - Combined

• US Classifications

  • 313 - Electric lamp and discharge devices
  • 123 - Internal-combustion engines
  • 137 - Fluid handling
  • 251 - Valves and valve actuation
  • 356 - Optics: measuring and testing