917032

Information

• Patent Grant
• 917032

• References
• Source

• Patent Number

  917,032

• Date Filed

  Not available

• Date Issued

  Tuesday, April 6, 1909
  116 years ago

• CPC

  • E21B19/084 - with flexible drawing means
  • Y10T74/15 - Intermittent grip type mechanical movement
  • Y10T74/1597 - Multiple acting
  • Y10T74/2133 - Pawls and ratchets

• US Classifications

  • 074 - Machine element or mechanism