3831648

Information

• Patent Grant
• 3831648

• References
• Source

• Patent Number

  3,831,648

• Date Filed

  Not available

• Date Issued

  Tuesday, August 27, 1974
  50 years ago

• CPC

  • B25B23/108 - the driving bit being a Philips type bit, an Allen type bit or a socket
  • B25B15/005 - with cross- or star-shaped cross-section
  • B25B15/008 - Allen-type keys
  • B25B23/106 - the driving bit being a blade

• US Classifications

  • 081 - Tools