2456052

Information

• Patent Grant
• 2456052

• References
• Source

• Patent Number

  2,456,052

• Date Filed

  Not available

• Date Issued

  Tuesday, December 14, 1948
  76 years ago

• CPC

  • G03B9/28 - Roller blind or flexible plate

• US Classifications

  • 396 - Photography
  • 160 - Flexible or portable closure, partition, or panel