3670632

Information

• Patent Grant
• 3670632

• References
• Source

• Patent Number

  3,670,632

• Date Filed

  Not available

• Date Issued

  Tuesday, June 20, 1972
  53 years ago

• CPC

  • B41B19/01 - having electron-beam tubes producing an image of at least one character which is photographed
  • B41B21/16 - Optical systems
  • B41B21/32 - Film carriers Film-conveying or positioning devices
  • B41B21/34 - with positioning mechanisms

• US Classifications

  • 396 - Photography
  • 355 - Photocopying