3881837

Information

• Patent Grant
• 3881837

• References
• Source

• Patent Number

  3,881,837

• Date Filed

  Not available

• Date Issued

  Tuesday, May 6, 1975
  49 years ago

• CPC

  • C25F3/02 - Etching
  • B23B51/02 - Twist drills
  • B23B2222/32 - Details of high speed steel
  • Y10S76/11 - Tungsten and tungsten carbide
  • Y10T408/78 - Tool of specific diverse material

• US Classifications

  • 408 - Cutting by use of rotating axially moving tool
  • 076 - Metal tools and implements, making