1370140

Information

• Patent Grant
• 1370140

• References
• Source

• Patent Number

  1,370,140

• Date Filed

  Not available

• Date Issued

  Tuesday, March 1, 1921
  103 years ago

• CPC

  • E21B19/10 - Slips Spiders; Catching devices
  • E21D15/34 - by axially- moving balls, rollers, or the like

• US Classifications

  • 188 - Brakes