1998939

Information

• Patent Grant
• 1998939

• References
• Source

• Patent Number

  1,998,939

• Date Filed

  Not available

• Date Issued

  Tuesday, April 23, 1935
  89 years ago

• CPC

  • G05D3/18 - delivering a series of pulses
  • B23Q35/12 - involving electrical means
  • B23Q35/123 - the feeler varying the impedance in a circuit
  • B23Q2735/062 - in a lathe
  • Y10T82/143 - having electrical actuator
  • Y10T409/500328 - including use of tracer adapted to trigger electrical or fluid energy

• US Classifications

  • 409 - Gear cutting, milling, or planing
  • 082 - Turning
  • 266 - Metallurgical apparatus
  • 318 - Electricity: motive power systems