2891315

Information

• Patent Grant
• 2891315

• References
• Source

• Patent Number

  2,891,315

• Date Filed

  Not available

• Date Issued

  Tuesday, June 23, 1959
  65 years ago

• CPC

  • B23Q35/10 - mechanically only
  • B44B3/001 - by copying
  • B44B3/002 - using a pantograph
  • B44B2700/021 - by copying

• US Classifications

  • 033 - Geometrical instruments