1642436

Information

• Patent Grant
• 1642436

• References
• Source

• Patent Number

  1,642,436

• Date Filed

  Not available

• Date Issued

  Tuesday, September 13, 1927
  97 years ago

• CPC

  • H05B31/0039 - Projectors, the construction of which depends upon the presence of the arc

• US Classifications

  • 314 - Electric lamp and discharge devices: consumable electrodes
  • 313 - Electric lamp and discharge devices