1969273

Information

• Patent Grant
• 1969273

• References
• Source

• Patent Number

  1,969,273

• Date Filed

  Not available

• Date Issued

  Tuesday, August 7, 1934
  90 years ago

• CPC

  • B44C1/22 - Removing surface-material
  • B44B3/04 - wherein non-plane surfaces are worked
  • B44B2700/025 - for engraving a surface of revolution

• US Classifications

  • 008 - Bleaching and dyeing