1851414

Information

• Patent Grant
• 1851414

• References
• Source

• Patent Number

  1,851,414

• Date Filed

  Not available

• Date Issued

  Tuesday, March 29, 1932
  92 years ago

• CPC

  • E21B27/02 - Dump bailers, i.e. containers for depositing substances
  • Y10T74/118 - Winding knob trip [e.g., alarm mechanism]

• US Classifications

  • 294 - Handling: hand and hoist-line implements
  • 074 - Machine element or mechanism