2477993

Information

• Patent Grant
• 2477993

• References
• Source

• Patent Number

  2,477,993

• Date Filed

  Not available

• Date Issued

  Tuesday, August 2, 1949
  75 years ago

• CPC

  • G06M1/107 - electromotors

• US Classifications

  • 318 - Electricity: motive power systems
  • 246 - Railway switches and signals
  • 310 - Electrical generator or motor structure
  • 340 - Communications: electrical
  • 368 - Horology: time measuring systems or devices
  • 377 - Electrical pulse counters, pulse dividers, or shift registers: circuits and systems