3521545

Information

• Patent Grant
• 3521545

• References
• Source

• Patent Number

  3,521,545

• Date Filed

  Not available

• Date Issued

  Tuesday, July 21, 1970
  55 years ago

• CPC

  • G03D13/08 - Devices for holding exposed material Devices for supporting exposed material

• US Classifications

  • 220 - Receptacles
  • 396 - Photography