1900370

Information

• Patent Grant
• 1900370

• References
• Source

• Patent Number

  1,900,370

• Date Filed

  Not available

• Date Issued

  Tuesday, March 7, 1933
  93 years ago

• CPC

  • E21B19/161 - using a wrench or a spinner adapted to engage a circular section of pipe
  • Y10S81/01 - Tool-support adjuncts
  • Y10S81/09 - Pivoted jaw latch means
  • Y10T24/45351 - Coil type spring

• US Classifications

  • 081 - Tools
  • 024 - Buckles, buttons, clasps, etc.