1713843

Information

• Patent Grant
• 1713843

• References
• Source

• Patent Number

  1,713,843

• Date Filed

  Not available

• Date Issued

  Tuesday, May 21, 1929
  95 years ago

• CPC

  • H01T13/48 - having means for rendering sparks visible

• US Classifications

  • 313 - Electric lamp and discharge devices