3143020

Information

• Patent Grant
• 3143020

• References
• Source

• Patent Number

  3,143,020

• Date Filed

  Not available

• Date Issued

  Tuesday, August 4, 1964
  61 years ago

• CPC

  • G07F17/145 - for revolving doors or turnstiles
  • Y10T83/4656 - Tool moved in response to work-sensing means
  • Y10T83/4844 - Resiliently urged cutter or anvil member
  • Y10T83/536 - Movement of work controlled

• US Classifications

  • 083 - Cutting
  • 033 - Geometrical instruments
  • 226 - Advancing material of indeterminate length
  • 346 - Recorders