3047647

Information

• Patent Grant
• 3047647

• References
• Source

• Patent Number

  3,047,647

• Date Filed

  Not available

• Date Issued

  Tuesday, July 31, 1962
  62 years ago

• CPC

  • G05D23/224 - using selfs or transformers

• US Classifications

  • 373 - Industrial electric heating furnaces
  • 065 - Glass manufacturing
  • 219 - Electric heating
  • 238 - Railways: surface track
  • 323 - Electricity: power supply or regulation systems
  • 330 - Amplifiers