1931071

Information

• Patent Grant
• 1931071

• References
• Source

• Patent Number

  1,931,071

• Date Filed

  Not available

• Date Issued

  Tuesday, October 17, 1933
  91 years ago

• CPC

  • B66C11/20 - Arrangements
  • Y10T74/18182 - Pump jack type

• US Classifications

  • 212 - Traversing hoists
  • 074 - Machine element or mechanism
  • 254 - Implements or apparatus for applying pushing or pulling force
  • 475 - Planetary gear transmission systems or components