1976298

Information

• Patent Grant
• 1976298

• References
• Source

• Patent Number

  1,976,298

• Date Filed

  Not available

• Date Issued

  Tuesday, October 9, 1934
  90 years ago

• CPC

  • G05B19/126 - using cards, tapes or discs having protuberances
  • G05B2219/23202 - Curve, surface represents analog value, line, surface follower
  • Y10S33/03 - Photoelectric

• US Classifications

  • 236 - Automatic temperature and humidity regulation
  • 033 - Geometrical instruments
  • 250 - Radiant energy
  • 266 - Metallurgical apparatus
  • 307 - Electrical transmission or interconnection systems
  • 318 - Electricity: motive power systems
  • 361 - Electricity: electrical systems and devices