2221584

Information

• Patent Grant
• 2221584

• References
• Source

• Patent Number

  2,221,584

• Date Filed

  Not available

• Date Issued

  Tuesday, November 12, 1940
  84 years ago

• CPC

  • H02P7/34 - using Ward-Leonard arrangements
  • Y10T409/505412 - Reciprocating work infeed means

• US Classifications

  • 409 - Gear cutting, milling, or planing
  • 318 - Electricity: motive power systems
  • 322 - Electricity: single generator systems