2279401

Information

• Patent Grant
• 2279401

• References
• Source

• Patent Number

  2,279,401

• Date Filed

  Not available

• Date Issued

  Tuesday, April 14, 1942
  82 years ago

• CPC

  • F16B35/06 - Specially-shaped heads
  • B25B13/065 - characterised by the cross-section of the socket
  • B25B23/065 - the magazine being coaxial with the tool axis
  • B25B23/10 - using mechanical gripping means
  • B25B23/142 - specially adapted for hand operated wrenches or screwdrivers
  • F16B27/00 - Bolts, screws, or nuts formed in integral series but easily separable, particularly for use in automatic machines
  • F16B35/044 - Specially-shaped ends
  • G04D1/0028 - Screwdrivers
  • G04D1/0078 - Automated gripping means
  • F16B23/00 - Specially shaped nuts or heads of bolts or screws for rotations by a tool
  • F16B31/021 - by means of a frangible part
  • Y10S206/82 - Separable, striplike plural articles
  • Y10S403/02 - Metal treatment
  • Y10S411/919 - Screw having driving contacts
  • Y10T29/4979 - Breaking through weakened portion
  • Y10T29/53687 - by rotation of work part

• US Classifications

  • 470 - Threaded, headed fastener, or washer making: process and apparatus
  • 968 - Horology