2499348

Information

• Patent Grant
• 2499348

• References
• Source

• Patent Number

  2,499,348

• Date Filed

  Not available

• Date Issued

  Tuesday, March 7, 1950
  74 years ago

• CPC

  • G03D13/147 - for several widths of film or several films

• US Classifications

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