2468411

Information

• Patent Grant
• 2468411

• References
• Source

• Patent Number

  2,468,411

• Date Filed

  Not available

• Date Issued

  Tuesday, April 26, 1949
  75 years ago

• CPC

  • G03D13/142 - with a spacing strip

• US Classifications

  • 396 - Photography
  • 242 - Winding, tensioning, or guiding