2190925

Information

• Patent Grant
• 2190925

• References
• Source

• Patent Number

  2,190,925

• Date Filed

  Not available

• Date Issued

  Tuesday, February 20, 1940
  84 years ago

• CPC

  • E21C35/043 - Protection against overload during transfer of machines for slitting or completely freeing the mineral from the seam
  • Y10T74/1524 - Intermittently engaged clutch

• US Classifications

  • 074 - Machine element or mechanism