3807697

Information

• Patent Grant
• 3807697

• References
• Source

• Patent Number

  3,807,697

• Date Filed

  Not available

• Date Issued

  Tuesday, April 30, 1974
  51 years ago

• CPC

  • B66D3/22 - with variable-speed gearings between driving motor and drum or barrel
  • B66D3/18 - Power-operated hoists
  • B66D2700/026 - Pulleys, sheaves, pulley blocks or their mounting
  • Y10S254/901 - Antifriction means for cable pulling drum

• US Classifications

  • 254 - Implements or apparatus for applying pushing or pulling force
  • 242 - Winding, tensioning, or guiding