1978781

Information

• Patent Grant
• 1978781

• References
• Source

• Patent Number

  1,978,781

• Date Filed

  Not available

• Date Issued

  Tuesday, October 30, 1934
  91 years ago

• CPC

  • E05C19/10 - Hook fastenings Fastenings in which a link engages a fixed hook-like member
  • Y10S411/919 - Screw having driving contacts
  • Y10T70/40 - Portable
  • Y10T70/5146 - Window
  • Y10T70/7486 - Single key
  • Y10T70/7791 - Keys
  • Y10T70/7853 - Tubular
  • Y10T70/7881 - Bitting
  • Y10T292/0955 - Screw catch

• US Classifications

  • 070 - Locks
  • 200 - Electricity: circuit makers and breakers
  • 292 - Closure fasteners
  • 411 - Expanded, threaded, driven, headed, tool-deformed, or locked-threaded fastener