1520779

Information

• Patent Grant
• 1520779

• References
• Source

• Patent Number

  1,520,779

• Date Filed

  Not available

• Date Issued

  Tuesday, December 30, 1924
  100 years ago

• CPC

  • F21V37/007 - Globs
  • F21V3/00 - Globes Bowls Cover glasses

• US Classifications

  • 431 - Combustion
  • 362 - Illumination