2321822

Information

• Patent Grant
• 2321822

• References
• Source

• Patent Number

  2,321,822

• Date Filed

  Not available

• Date Issued

  Tuesday, June 15, 1943
  81 years ago

• CPC

  • B28D1/143 - lens-drilling machines
  • Y10T408/3792 - with means to sequentially feed tools toward work
  • Y10T408/46 - including nozzle

• US Classifications

  • 408 - Cutting by use of rotating axially moving tool