2154252

Information

• Patent Grant
• 2154252

• References
• Source

• Patent Number

  2,154,252

• Date Filed

  Not available

• Date Issued

  Tuesday, April 11, 1939
  85 years ago

• CPC

  • B41C1/04 - using heads controlled by an electric information signal
  • Y10T409/301792 - including means to sense optical or magnetic image
  • Y10T409/30196 - to actuate electrically driven work or tool moving means
  • Y10T409/302464 - including plural cutters

• US Classifications

  • 409 - Gear cutting, milling, or planing
  • 451 - Abrading