3842268

Information

• Patent Grant
• 3842268

• References
• Source

• Patent Number

  3,842,268

• Date Filed

  Not available

• Date Issued

  Tuesday, October 15, 1974
  50 years ago

• CPC

  • G06M1/272 - using photoelectric means
  • G01R11/14 - with magnetic relief

• US Classifications

  • 250 - Radiant energy
  • 324 - Electricity: measuring and testing
  • 340 - Communications: electrical