3345557

Information

• Patent Grant
• 3345557

• References
• Source

• Patent Number

  3,345,557

• Date Filed

  Not available

• Date Issued

  Tuesday, October 3, 1967
  57 years ago

• CPC

  • G05D23/2456 - using selfs or transformers

• US Classifications

  • 323 - Electricity: power supply or regulation systems
  • 346 - Recorders