2703994

Information

• Patent Grant
• 2703994

• References
• Source

• Patent Number

  2,703,994

• Date Filed

  Not available

• Date Issued

  Tuesday, March 15, 1955
  69 years ago

• CPC

  • B23B39/22 - with working-spindles in opposite headstocks
  • B23B39/003 - Drilling machine situated underneath the workpiece
  • B23B2220/32 - Drilling holes from both sides
  • Y10T408/3792 - with means to sequentially feed tools toward work

• US Classifications

  • 408 - Cutting by use of rotating axially moving tool