1964030

Information

• Patent Grant
• 1964030

• References
• Source

• Patent Number

  1,964,030

• Date Filed

  Not available

• Date Issued

  Tuesday, June 26, 1934
  90 years ago

• CPC

  • B23B51/00 - Tools for drilling machines
  • B23B51/02 - Twist drills
  • B28D1/146 - Tools therefor
  • B23B2226/75 - Stone, rock or concrete
  • B23B2251/247 - Drilling tools having a working portion at both ends of the shank
  • Y10T408/907 - including detailed shank

• US Classifications

  • 175 - Boring or penetrating the earth
  • 408 - Cutting by use of rotating axially moving tool