3557379

Information

• Patent Grant
• 3557379

• References
• Source

• Patent Number

  3,557,379

• Date Filed

  Not available

• Date Issued

  Tuesday, January 19, 1971
  54 years ago

• CPC

  • B23Q35/30 - for control of an electrical or electro-hydraulic copying system
  • Y10T409/303584 - Photocell

• US Classifications

  • 250 - Radiant energy
  • 033 - Geometrical instruments
  • 409 - Gear cutting, milling, or planing