1930013

Information

• Patent Grant
• 1930013

• References
• Source

• Patent Number

  1,930,013

• Date Filed

  Not available

• Date Issued

  Tuesday, October 10, 1933
  91 years ago

• CPC

  • B23B39/16 - Drilling machines with a plurality of working-spindles Drilling automatons
  • B23B39/168 - with the work spindles being oblique to each other
  • B23Q5/12 - Mechanical drives with means for varying the speed ratio
  • B27C3/04 - Stationary drilling machines with a plurality of working spindles
  • Y10T74/17 - Rotary driven device adjustable during operation relative to its supporting structure
  • Y10T74/1836 - Rotary to rotary

• US Classifications

  • 074 - Machine element or mechanism