1524499

Information

• Patent Grant
• 1524499

• References
• Source

• Patent Number

  1,524,499

• Date Filed

  Not available

• Date Issued

  Tuesday, January 27, 1925
  100 years ago

• CPC

  • G03F5/04 - changing the screen effect
  • Y10S430/152 - Making camera copy

• US Classifications

  • 430 - Radiation imagery chemistry: process, composition, or product thereof
  • 396 - Photography