1474944

Information

• Patent Grant
• 1474944

• References
• Source

• Patent Number

  1,474,944

• Date Filed

  Not available

• Date Issued

  Tuesday, November 20, 1923
  101 years ago

• CPC

  • G05D3/128 - using clutch or brake

• US Classifications

  • 318 - Electricity: motive power systems