3806641

Information

• Patent Grant
• 3806641

• References
• Source

• Patent Number

  3,806,641

• Date Filed

  Not available

• Date Issued

  Tuesday, April 23, 1974
  50 years ago

• CPC

  • B41B27/28 - Control, indicating, or safety devices for individual operations or machine elements
  • B41B19/01 - having electron-beam tubes producing an image of at least one character which is photographed

• US Classifications

  • 358 - Facsimile and static presentation processing
  • 345 - Computer graphics processing and selective visual display systems