2947928

Information

• Patent Grant
• 2947928

• References
• Source

• Patent Number

  2,947,928

• Date Filed

  Not available

• Date Issued

  Tuesday, August 2, 1960
  64 years ago

• CPC

  • G05B19/14 - using punched cards or tapes
  • G05B19/40 - Open loop systems
  • G05B2219/33268 - D-A, A-D
  • G05B2219/36368 - Tape reader
  • Y10T409/300896 - with sensing of numerical information and regulation without mechanical connection between sensing means and regulated means [i.e., numerical control]

• US Classifications

  • 318 - Electricity: motive power systems
  • 200 - Electricity: circuit makers and breakers
  • 226 - Advancing material of indeterminate length
  • 234 - Selective cutting
  • 409 - Gear cutting, milling, or planing