1987978

Information

• Patent Grant
• 1987978

• References
• Source

• Patent Number

  1,987,978

• Date Filed

  Not available

• Date Issued

  Tuesday, January 15, 1935
  90 years ago

• CPC

  • B23B39/12 - Radial drilling machines
  • Y10T74/177 - Rack and pinion adjusting means
  • Y10T74/20238 - Interlocked

• US Classifications

  • 074 - Machine element or mechanism