1671477

Information

• Patent Grant
• 1671477

• References
• Source

• Patent Number

  1,671,477

• Date Filed

  Not available

• Date Issued

  Tuesday, May 29, 1928
  96 years ago

• CPC

  • G03D13/06 - Light-tight tanks with provision for loading in daylight
  • G03D17/00 - Dark-room arrangements not provided for in the preceding groups portable dark-rooms
  • Y10S362/803 - Photo safe lamp

• US Classifications

  • 396 - Photography
  • 362 - Illumination