3821732

Information

• Patent Grant
• 3821732

• References
• Source

• Patent Number

  3,821,732

• Date Filed

  Not available

• Date Issued

  Friday, June 28, 1974
  50 years ago

• CPC

  • G08B13/18 - Actuation by interference with heat, light or radiation of shorter wavelength Actuation by intruding sources of heat, light or radiation of shorter wavelength
  • G02B6/3604 - Rotary joints allowing relative rotational movement between opposing fibre or fibre bundle ends
  • G09B19/26 - Dot-and dash telegraphic codes

• US Classifications

  • 340 - Communications: electrical
  • 348 - Television
  • 358 - Facsimile and static presentation processing
  • 385 - Optical waveguides