3742825

Information

• Patent Grant
• 3742825

• References
• Source

• Patent Number

  3,742,825

• Date Filed

  Not available

• Date Issued

  Tuesday, July 3, 1973
  51 years ago

• CPC

  • B41B21/16 - Optical systems
  • B41B27/28 - Control, indicating, or safety devices for individual operations or machine elements

• US Classifications

  • 396 - Photography