1989396

Information

• Patent Grant
• 1989396

• References
• Source

• Patent Number

  1,989,396

• Date Filed

  Not available

• Date Issued

  Tuesday, January 29, 1935
  90 years ago

• CPC

  • B44B3/00 - Artist's machines or apparatus equipped with tools or work holders moving or able to be controlled substantially two- dimensionally for carving, engraving, or guilloching shallow ornamenting or markings
  • Y10S116/02 - Corrections by cursor lines
  • Y10T409/308848 - including dividing head

• US Classifications

  • 033 - Geometrical instruments
  • 116 - Signals and indicators
  • 409 - Gear cutting, milling, or planing