2489548

Information

• Patent Grant
• 2489548

• References
• Source

• Patent Number

  2,489,548

• Date Filed

  Not available

• Date Issued

  Tuesday, November 29, 1949
  75 years ago

• CPC

  • G03D13/125 - for several filmstrips or plates

• US Classifications

  • 396 - Photography
  • 040 - Card, picture, or sign exhibiting